新蘇教版六年級上冊數(shù)學(xué)補充習(xí)題答案.doc
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蘇教版六年級上冊數(shù)學(xué)補充習(xí)題答案 六年級上冊數(shù)學(xué)補充習(xí)題第1頁答案? 1:長方體和正方體都有(6?)個面、(?12?)條棱、(?8?)個頂點。長方體相對的面(完全相同),相對的棱(完全相等);正方體6個面(?完全相同?),12條棱(?長度相等?)。?? 2:用鐵絲焊接一個長8厘米、寬5厘米、高4厘米的長方體框架,要準(zhǔn)備8厘米的鐵絲(??4?)根,5厘米的鐵絲(??4??)根,4厘米的鐵絲(??4?)根。至少需用鐵絲(???68?)厘米。?? 3:焊接一個正方體框架共用去鐵絲60厘米。這個正方體框架的棱長是(???5?)厘米。?因為正方體有12條相同的棱,所以用60除以12等于5.?? 4:長方體上面下面的面積是(?24?)平方厘米,?長方體前面后面的面積是(?18?)平方厘米,?長方體左右側(cè)面的面積是(?12?)平方厘米。?? 5:下面的長方體都是由棱長1厘米的小正方體擺成的。把它們的長、寬、高分別填在括號里。? 長(7)厘米?寬(3)厘米?高(3)厘米? 一共由(63)個小正方體擺成? ? 六年級上冊數(shù)學(xué)補充習(xí)題第2頁答案? 1:??? 下面 后面 后面 上面 左面? 左面 右面 下面 2:????√?????????×????????√?????????√? 六年級上冊數(shù)學(xué)補充習(xí)題第3頁答案? 3:????5??????4??????6?? 4:???上面 左面 右面 后面 下面 3 1 2 ??5:? ?后面 上面 左面? ?4????????2?????????3 六年級上冊數(shù)學(xué)補充習(xí)題第4頁答案? 1:? ? ⑴? ?5×3=15 ? ?? ?? ?⑵? ? 5×6=30 ? ?? ?? ?⑶? ?6×3=18 ? ?? ?? ?⑷? ? ﹙15+30+18﹚×2 ? ?? ?? ?? ?? ?=63×2 ? ?? ?? ?? ?? ?=126 2:? ? 圖一 ? ?? ?? ? ﹙12×10+12×8+10×8﹚×2 ? ?? ?? ?=﹙120+96+80﹚×2 ? ?? ?? ?=296×2 ? ?? ?? ?=592 ? ?? ?? ???圖二 ? ?? ?? ?6×6×6=216 六年級上冊數(shù)學(xué)補充習(xí)題第5頁答案? 3:???⑴??前??????????后?????????⑵???面積相等????????50? ??????⑶???50x4+5x5x2=250平方厘米?? 4:????﹙30×20+30×15+20×15﹚×2 ?????????=﹙600+450+300﹚×2 ?????????=1350×2 ?????????=2700?? 5:??5×5×6=150? 六年級上冊數(shù)學(xué)補充習(xí)題第6頁答案? 1:????⑴???3? ????????⑵????48????????????頂面????????????????底面?? 2:????﹙20×14+20×21﹚×2+21×14 =﹙280+420﹚×2+294 ??????=700×2+294 =1400+294??=1694?? 3:????玻璃? 1.2×1.2=1.44??????????? ???? ??硬紙板???1.2×1.2×5=7.2?? 4:???? ?﹙8×3+4×3﹚×2—14 ??????????=﹙24+12﹚×2—14 ??????????=36×2—14 ??????????=72—14 ??????????=58? 六年級上冊數(shù)學(xué)補充習(xí)題第7頁答案? 1:???1元大?? 2:???一樣大。體積與形狀無關(guān)。?? 3:???正方體那個大?? 4:???最后一個大??????????第2個最小? 六年級上冊數(shù)學(xué)補充習(xí)題第8頁答案? 1:???8????????8????????10?? 2:???立方分米??????????立方厘米 立方厘米??????????立方米???????? ??升????????????????毫升? 六年級上冊數(shù)學(xué)補充習(xí)題第9頁答案 1: 4 2 2 2 3 2 3 16 12 27 2:????5?? 3:????300????????252????????375? 六年級上冊數(shù)學(xué)補充習(xí)題第10頁答案? 1:?5 4? 3?? 5x4x3=60?? 5x4x3=60立方厘米?? 2:?4? ?4 ?4?? 4x4x4=64?? 4x4x4=64?立方厘米?? 3: 0.6x0.6x0.9=0.324立方分米?? 10x10x10=1000立方分米? 六年級上冊數(shù)學(xué)補充習(xí)題第11頁答案? 4:??3×1.5×0.5=2.25? 5:???30×30×30=27000? 6:????圖一??????? 底面積?????8×6=48???????????? 體積???????48×4=192? 圖二??????? 底面積?????4×4=16???????????? 體積???????4×4×4=64? 7:??⑴??10×4=40?????????? ⑵??10×4×2=80? 六年級上冊數(shù)學(xué)補充習(xí)題第12頁答案? 1:?⑴???15×4=60???????⑵????25×25=625?? 2:??80×80×2=12800?? 3:??解設(shè):……???????? 3×1.5×x=3.6????????????????????????? x=0.8?? 4:???5×5×5=125立方分米?????? 23÷5=4……?3??????????? 能切4個? 六年級上冊數(shù)學(xué)補充習(xí)題第13頁答案? 1:??300??????????104 ?????3000?????????1040 27 5.6? ?2.7???????????0.56?? 2:???0.72?????????810???? 600 4200????? ??????8.25??????????70?? 3:???5.3??????????250? 400?????????0.05?? 4:???2×1.5×2=3.6? ??????3.6÷80=0.045立方米=45立方分米?? 5:??40×40×50=80000立方厘米=80L? 六年級上冊數(shù)學(xué)補充習(xí)題第14頁答案? 1: ??256?????????240?? 148 120??? ??? ??0.4??????????0.016? ??????54????????????27?? 2:?⑴??﹙3×2.5+2.5×4=3×4﹚×2 ???????=29.5×2 ???????=59?? ???⑵??4×3×2.5=30?? 3:??⑴??5×5×5=125??????? ?⑵??5×5×6=150? 六年級上冊數(shù)學(xué)補充習(xí)題第15頁答案? 4:?⑴??(8×7+6×7)×2+8×6 ????????=(56+42)×2+8×6 ????????=98×2+48 ????????=196+48 ??????? =244?? ????⑵????70×50×65=227500立方厘米=227.5L 5:???4×4×4×200=12800立方分米=12.8立方米?? 6:???20×0.2×3×520=6240? 六年級上冊數(shù)學(xué)補充習(xí)題第16頁答案? 1:??104????????432????????576?? 2:??32??????????64??????????384?????????512?? 3:??1.8?????????8?? 4:? ?450????????3200?? 5.67 0.8?????? 740 740??????? ??3.6?????????3.6?? 5:??(12×10+12×8+10×8)×2 ?????=(120+96+80)×2 ?????=296×2 ?????=592?? ???????10×10×6=600?? ????????600-592=8? 六年級上冊數(shù)學(xué)補充習(xí)題第17頁答案? 6:??4×44×=64立方分米=64000毫升?? 7:??9×5×4×0.85=153?? 8:?體積??????7×6×6=252? 表面積????7×6×4+6×6×2=168+72=240?? 9:??1米=100厘米? ??????5×5×100=2500立方厘米 ??????7.8×2500=19500克=19.5千克? 六年級上冊數(shù)學(xué)補充習(xí)題第18頁答案? 1:??⑴??(ab+ac+bc)×2??????????⑵???abc?? 2:??????6a???????????a?的立方?? 3:??0.6×0.6×0.6÷0.08=2.7?? 4:??⑴???50×15=750? ?????⑵??(50×1.4+15×1.4)×2+50×15 ????????=(70+21)×2+750 ????????=182+750 ????????=932? ???⑶??50×15×(1.4-0.2﹚ ??????=50×15×1.2 ??????=900? ? 六年級上冊數(shù)學(xué)補充習(xí)題第19頁答案? 1:???4????????2/9?????????8/9?? 2:???9/7?????5/9?????????3? ??????5/6??????5????????????7/2? 3:???3/4×4=3?? 4:???4/3×60=80?? 5:???1/10×8=4/5? 六年級上冊數(shù)學(xué)補充習(xí)題第20頁答案? 1:?⑴???24×1/3=8???????⑵???24×5/6=20?? 2:?⑴??100×2=200???????⑵???100×2/5=40???????⑶???100×5/4=125? 六年級上冊數(shù)學(xué)補充習(xí)題第21頁答案? 3:???15×2/5=6?? 4:????48×3/8=18???????????48×1/6=8?? 5:????60×2/3=40?? 6:????五年級??????720×1.2=864 ???????四年級??????720×7/9=560? 六年級上冊數(shù)學(xué)補充習(xí)題第22頁答案? 1:??⑴?梨樹????????桃樹? ????????桃樹????????梨樹比桃樹多?? ????????⑵???美術(shù)組??????????合唱組? ??????????????合唱組?????????美術(shù)組比合唱組少?? 2:?⑴????六年級二班?????????六年級一班比六年級二班多? ?⑵????文藝書??????????? 科技書比文藝書少? 六年級上冊數(shù)學(xué)補充習(xí)題第23頁答案? 3:?????36×2/9=8?? 4:????⑴???84x5/7=60???????????⑵??84x2/7=24?? 5:???????40x3/8=15????????????15+40=55? 六年級上冊數(shù)學(xué)補充習(xí)題第24頁答案? 1:??1/4????????2/5?? 2:???1/5???????1/6?????????4/3? ??????1/4???????3/10???????2/5? 3:????9/5???????10/7????????2/3 ???????3???????????2?????????1/9?? 4:???3/50×2=3/25?? 5:???3/50×2/3=1/25? 六年級上冊數(shù)學(xué)補充習(xí)題第25頁答案? 5:????2/5×5/8=1/4?? 6:????3/4×2/3=1/2???????????3/4×1/2=3/8?? 7:?????1/8×2/7=1/28?? 8??????7/8×1/14=1/16? 六年級上冊數(shù)學(xué)補充習(xí)題第26頁答案? 1:????9/40????????1/4 27/10???????2/25?? 2:????表面積??1/6×1/6×6=1/6 ???????體積?? ?1/6×1/6×1/6=1/216?? 3:?????120×5/6×3/4=75?? 4:??????110×9/11×9/10=81? 六年級上冊數(shù)學(xué)補充習(xí)題第27頁答案? 1:???15/8????????????????18/5? ??????1/28????????????????45/16?? 2:????第三堆?80×15/16×7/5=105?? 3:????3/4×5/6×4/5=1/2?? 4:???第一個月?????330×5/11=150????? ??????第二個月?????150×5/6=125? 六年級上冊數(shù)學(xué)補充習(xí)題第28頁答案? 1:??5/4?????????11??????????1/6?? 2:??6/5?????????1/5????????? 2/9????????8????????? 1??????????0?? 3:??615×1/3×2/5=82?? 4:??⑴??4/5×1/2=2/5????????⑵??4/5--1/2=3/10 5:??2/5<2<7/2?????????2/7<2<5/2? 六年級上冊數(shù)學(xué)補充習(xí)題第29頁答案? 1:???7/12???????????8???????15/2?? ??????21/16????????25/2??????10/3?? 2:???1/12????????3??????? ???32/25???????15?? 3:???625???????????750??? ???????24?????????????25?? 4:???4/3????????2/5?????????12/7???????1/5?? 5:???3/4x1/2=3/8?? 6:??????2/5x3x5/6=1? 六年級上冊數(shù)學(xué)補充習(xí)題第30頁答案? 1:????7/25??????????1/6????????3????? ??????1/4???????????8/15???????1/36?? 2:?????????????????????????? ?????>???????????????=?? 3:??跑步??126x1/3=42???????????跳高??126x1/6=21?? 4:??????6????4????2????8? 六年級上冊數(shù)學(xué)補充習(xí)題第31頁答案? 5:??????18x1/9=2? 6:???????(1)???32x7/8=28????????????(2)??32x3/16=6?? 7:??????360x9/10x8/9=288? 六年級上冊數(shù)學(xué)補充習(xí)題第32頁答案? 1:??????1/4?????????2/9?? 2:??????1/3?????2/7?????????????????1/6?????3/22?? 3:???2/5??????????3/23???????????3/13???? ?????4/5??????????12/23?????????15/13?? 4:???2/25?????????4/25???????????1/45????? ?????1/18?????????1/12????????????2/63?? 5:???????4/5÷4=1/5????????????4/5×1/4=1/5? 六年級上冊數(shù)學(xué)補充習(xí)題第33頁答案? 1:???8????????????????5?? 2:???3/2????12????????????5/4???????25/2?? 3:???18?????????????33/2?????? ????36?????????????108?? 4:????40÷2/5=40×5/2=100?? 5:????20÷1/4=20×4=80 6:???1÷2/9=9/2? 六年級上冊數(shù)學(xué)補充習(xí)題第34頁答案? 1:???5/12???????12/7????????5/7?????????? 7/10???????2/5??????????7/25?? 2:????1/15????????17/30?????? 20 7/10? 3:??(1)??2????????????10/3??? ??????1/2??????????3/10 ?(2)?4/5??????????5/6???? ??????5/9??????????15/32?? 4:???x=1/6???????x=?2/3????????x=?2? 六年級上冊數(shù)學(xué)補充習(xí)題第35頁答案? 5:???9/10?????????>????? ?????2/5??????????<?? 6:????>??????<???????<?? 7:????6/5÷1/10=6/5×10=12?? 8:⑴??1/20÷4/5=1/20×5/4=1/16???????? ⑵???4/5÷1/20=4/5×20=16? 六年級上冊數(shù)學(xué)補充習(xí)題第36頁答案? 1:??⑴???(全書?)?的頁數(shù)×2/3=(看了)的頁數(shù) 2/3x=40??? ???????x=60?? ?⑵????(六年級植樹)的棵數(shù)×5/6=(五年級植樹)的棵樹????????????????? 5/6x=50??????x=60?? 2:?????解設(shè):???……????? ??????7/8x=280??????? ??????x=320? 六年級上冊數(shù)學(xué)補充習(xí)題第37頁答案? 3:????解設(shè):……??????? 2/7x=4/5????????? ???x=14/5?? 4:???????解設(shè):……?? ?????????3/4x=18?????? ???????? x=24????????? 5:???????17/50÷1/4=17/50×4=68/50=34/25?? 6:??????5/6????????7/10??????????20/21? ?六年級上冊數(shù)學(xué)補充習(xí)題第38頁答案? 1:???⑴??30×2/5=12?????????⑵???12÷2/5=30?? 2:???⑴??180×5/6=150?????????⑵????150÷5/6=180 3:???鴨???360÷9/7=360×7/9=280?? ??????鵝???280÷7/8=280×8/7=320? 六年級上冊數(shù)學(xué)補充習(xí)題第39頁答案? 1:? ?????????? ???? ? 2:????2/3?????????????1/5???????????10/21?? 3:????4/5÷2/3÷2=4/5×3/2×1/2=3/5?? 4:????10×1/2÷1/5=10×1/2×5=25? 六年級上冊數(shù)學(xué)補充習(xí)題第40頁答案? 1.?(1)2/3?? 2∶3? ?2/3?? (2)2/5 ?2∶5 ?2/5?? 2.??5/3?? ?3/5 ?5∶3 ?5/3? 3∶5 ?3/5?? 3.?(1)40∶1 ?40?????????? 48∶1 ?48? ?(2)40? 48?? 4.???4? 12? 1/3??? 5.?涂色略?7∶2? 六年級上冊數(shù)學(xué)補充習(xí)題第41頁答案? 1.???16:8連8/4??????3:12連1:4??????20:4連5:1??????0.1:10連1:100?? 2.???21? 30????????3? 10?? 3.????3∶5? 6∶5?? ??????4∶7? 1∶2???? ??8∶15 ?5∶1?? 4.?????3∶2??? 5.????5∶10=1∶2?? 150∶600=1∶4? 125∶1000=1∶8? 六年級上冊數(shù)學(xué)補充習(xí)題第42頁答案? 1.?(1)8∶7??7∶8?? (2)8/7?7/8?? 2.?第二個? 3.?(1)5∶8?? 3∶8?? (2)5∶1?? 1∶6? (3)1∶11? ?1∶10? 六年級上冊數(shù)學(xué)補充習(xí)題第43頁答案? 4.????9?? 25 ?12 ?50 5.????5:16? ???3:10??????10:7?????5:1?????? ? ?5/16???????3/10???????10/7????????5?? 6.?(1)70∶100? ?(2)96∶100?? (3)48∶100?? 7.?直徑:4?cm? 8?cm? 周長:12.56?cm? 25.12?cm? 面積:12.56?cm2? 50.24?cm2?? 直徑比:4∶8=1∶2?? 周長比:12.56∶25.12=1∶2? 面積比:12.56∶50.24=1∶4? 六年級上冊數(shù)學(xué)補充習(xí)題第44頁答案? 1:???9/16??????????7/16?? 2:???⑴??1/5?????????⑵???1/2?????????⑶???3/10?? 3:???5+3=8? ????????水果糖?????64×5/8=40??????????巧克力????64×3/8=24?? 4:???42+36=78? ????????甲???130×42/78=70?????????已???130×36/78=60? 六年級上冊數(shù)學(xué)補充習(xí)題第45頁答案? 5:?3+3+2=8?????????? 40×3/8=15 40×3/8=15?????????? 40×2/8=10?? 6:???1+2+3=6?????? 180×1/6=30???? ? ??180×2/6=60???? ? ?180×3/6=90??????? ??是直角三角形?? 7:????2+5+3=10? ??????玫瑰花??90×2/10=18??? ??????杜鵑花???90×5/10=45???? ??????繡球花???90×3/10=27?? 8:???24÷2=12??? ??????5+3=8???????? 120×5/8=75?????? ???120×3/8=45??? ???75×45=3375? 六年級上冊數(shù)學(xué)補充習(xí)題第46頁答案? 1:???3∶5????????????5∶3???????????3∶8?? 2:???⑴??2+5=7? ??????????白兔???35×5/7=25????? ?????????黑兔???35×2/7=10????????? ?⑵???35÷5×2=14?? 3:????20×(1+50)=20×51?=1020?? 4:???巧克力???60÷5×3=36 ? 60-36=24????????? 奶糖???60÷3×5=100????? ???????100-60=40? 六年級上冊數(shù)學(xué)補充習(xí)題第47頁答案? 1:???5/6?????????12????????1/24??? ??????3/5??????????1/35?????5/3?? 2:???7/4??????????1/36????? ?????30????????????8/3?? 3:???10∶7???????7∶10?? 4:???25∶100????????1/4????????25:125?????1/5?? 5:????2∶1?? 6:????3∶1?? 7:????2/5???????4????????25?? 8:????化簡???32∶5???????1∶20?????????? ????????? ??5∶4?????????6∶1????? ???求比值???32/5??????????1/20???????? ?????????????5/4????????????6? 六年級上冊數(shù)學(xué)補充習(xí)題第48頁答案? 1:??1/20????????49/2????????4/3?? 2:??>???????????=????????????<??? ?????<???????????<?????????????>?? 3:??3/10÷2/5?=3/10×5/2?=3/4 2/5÷3/10?=2/5×10/3?=4/3?? 4:??3/20×2÷6/5?=3/20×2×5/6?=1/4? 六年級上冊數(shù)學(xué)補充習(xí)題第49頁答案? 5:???120÷2/3=120×3/2=180?? 6:???科技小組????40÷2/3=40×3/2=60?? ??????????書法小組????60÷3/5?=60×5/3=100?? 7:????黑兔??????????24×2/3=16?? ???????灰兔??????????24÷2/5?=24× 5/2?=60?? 8:???5+3=8 桃樹??????160×5/8=100?? 梨樹??????160×3/8=60?????????? 蘋果樹????160×2/8=40? 六年級上冊數(shù)學(xué)補充習(xí)題第50頁答案? 1:???⑴??4????????????⑵??3??????6?? 2:????小??72÷(6+3)=72÷9=8??????????? 大???8×3=24?? 3:????⑴??25??????????⑵?5? 六年級上冊數(shù)學(xué)補充習(xí)題第51頁答案? 1:???甲??(705+75+75+45)÷3?=900÷3?=300? ??????乙?????300-75=225??????? ????丙??????225-45=180?? 2:????薯片??(40-4)÷(5+1)=36÷6?=6???????????6+4=10?? 3:????女????(29+3)÷(1+3)=32÷4=8?????????? 男????????8-3=5? 六年級上冊數(shù)學(xué)補充習(xí)題第52頁答案? 1:???502+497+501+503+499+496+504??? ?????=500×7+2-3+1+3-1-4+4?? ?????=3500+2? ?????=3502?? 2:??汽車?? 224÷(3+4)=224÷7=32 ?????火車???32×4=128?? 3:????10 徒弟?360÷(5×2+8)=360÷18??=20?? ???師傅???20×2=40???????????? 六年級上冊數(shù)學(xué)補充習(xí)題第53頁答案? 4:?⑴???大卡車?????(25+5×2)÷(2+5)=35÷7=5?? ??????????小汽車?????5-2=3 ?⑵??小汽車?(25-4)÷(5+2)=21÷7=3?? ?????大汽車???3+2=5?? 5:?????小寧??(30+2)÷2=32÷2=16?? ???????小龍???(30-2)÷2?=28÷2=14?? 6:???????前排??(700+5×20)÷(20+20)=800÷40=20?? ??????????后排??(700-5×20)÷(20+20)=600÷40??=15? 六年級上冊數(shù)學(xué)補充習(xí)題第54頁答案? 1:??3/8?????????12????????1/2??? ?????9/20???????36????????2/3?????? ?????2/5?????????1/6???????1/100? 2:? ?5/12+2/3×3/4 =5/12+1/2 ? =5/12+6/12 =11/12 3÷(5/7-3/14) =3÷(10/14-3/14) =3÷1/2 =6 (28+2/7×7/8)×1/4 =(28+1/4)×1/4 =28×1/4+1/4×1/4 =7又1/16 3:??(3/5+1/3)×15 ?? ?=3/5×15+1/3×15? ?? ?? ? =9+5 ???=14 7/13×4/5+6/13÷5/4 = 7/13×4/5+6/13×4/5 =4/5×(7/13+6/13) =4/5×1 =4/5 ? ?? ???(7/24-3/16)÷1/8? ?? ?? ? ? ?? ???=? ?(7/24-3/16)×8? ? ? ?? ???=7/24×8-3/16×8? ?? ?? ? ? ?? ???=7/3-3/2 ? ?? ???=5/6 9/5-(2/5÷1/2+3/7) =??9/5-(2/5×2+3/7) =9/5-(4/5+3/7) =9/5-4/5-3/7 =4/7 六年級上冊數(shù)學(xué)補充習(xí)題第55頁答案 4:(1)3/4×1/6=1/8 (2)1/8×400=50 5:???15×4/5÷3=15×4/5×1/3=4?? 6:?3/2×1/2=3/4???????? ???3/4+3/2?=3/4+6/4?=9/4? 六年級上冊數(shù)學(xué)補充習(xí)題第56頁答案? 1:???14?????????2/3????????2/11?? 2:? ? 1/7×6/13+8/13×1/7 ?? ???=1/7×(6/13+8/13)? ?? ?? ? ? ? ? =??1/7×14/13 ?? ? =2/13 1/2÷4/5÷(2/9×3/8) =1/2×5/4×12 =15/2 (5/6-3/4)÷5/12÷9/5 =1/12×12/5×5/9 =1/9 3/7÷[5/7-(3/7+1/5)] =3/7÷[5/7-3/7-1/5] =3/7×35/3 =5 3:? ? 男??45×5/9=25 ? ?? ?? ?女??45-25=20 六年級上冊數(shù)學(xué)補充習(xí)題第57頁答案? 1:????40×(1-5/8)=40×3/8=15?? 2:?????128×(1-5/8)=128×3/8=48?? 3:????120×(1-1/4)=120×3/4=90?? 4:????30×20×(1-7/15)=30×20×8/15?=320? 六年級上冊數(shù)學(xué)補充習(xí)題第58頁答案? 1:??⑴?12×(1+1/4)=12×5/4=15?? ?????⑵??42×(1-2/7)=42×5/7=30?? 2:????30×(1+2/5)=30×7/5=42? 六年級上冊數(shù)學(xué)補充習(xí)題第59頁答案? 3:???27×(1-1/9)=27×8/9=24? 4:????350×(1+1/10)=350×11/10?=385?? 5:????810×(1-2/9)=810×7/9=630?? 6:???84×(1+3/7)=84×10/7=120? 六年級上冊數(shù)學(xué)補充習(xí)題第60頁答案? 1:???⑴??5/8×1/5=1/8?????????? ⑵???5/8×(1-1/5)=5/8×4/5=1/2?? 2:?????????95×(1-3/5)=95×2/5=38?? 3:??⑴??48×(1+1/6)=48×7/6=56? ?????⑵???48×(1-5/12)=48×7/12?=28? 六年級上冊數(shù)學(xué)補充習(xí)題第61頁答案? 4:????⑴???60×1/3+60×1/4?=20+15?=35 ⑵?????60×1/3-60×1/4=20-15=5?? 5:??????⑴??900×(1-1/12)=900×11/12=825?? ????????⑵??825×(1+1/11)=825×12/11=900? 六年級上冊數(shù)學(xué)補充習(xí)題第62頁答案? 1:??⑴??1/5?????????⑵???3/5?????????⑶???1/20?? 2:????⑴??360×4/9+360×1/6=160+60=220?? ???????⑵??360×4/9-360×1/6=160-60=100?? ??????⑶???360-360×4/9-360×1/6=360-160-60=140? 六年級上冊數(shù)學(xué)補充習(xí)題第63頁答案? 3:?⑴??420×(1+3/7)=420×10/7=600 ?⑵??600÷10×7=420?? 4:??四年級?????????720×2/9=160?? ????五年級????3+4=7?????????(720-160)×?3/7?=560×3/7=240?? ?????六年級?(720-160)×4/7=560×4/7?=320?? 5:????5/8-5/8×1/5-1/4?=5/8-1/8-1/4=1/4? 六年級上冊數(shù)學(xué)補充習(xí)題第64頁答案? 1:⑴??20%??????????????⑵??50%? 2:⑴??45%??????????????⑵??70%? 3:⑴??男生????????總??????? ⑵??去年?????????前年??????? ⑶???成活????????總? 4:??⑴???略????????⑵??略? 六年級上冊數(shù)學(xué)補充習(xí)題第65頁答案? 1:??⑴??79%???????????⑵???21%?? 2:???4??????5 3:???19?????20?? 4:???⑴?五????????三?????????⑵??二?? 5:???⑴??60%?????????⑵??80%??????????????120%? 六年級上冊數(shù)學(xué)補充習(xí)題第66頁答案? 1:??1.75----75%??? 0.12------12%??? 0.012------1.2%??????? 0.07-----7%?????? 1.075------107.5%?? 2:???35%???????????200%?????????820%???? ??????3%?????????????72.5%????????1000%??? ???????150%?????????32%???????????5.6%?? 3:????0.09???????????0.54????????????2.085????? ??????2.5????????????4??????????????????0.2?????? ?????0.005?????????0.156???????????0.0003?? 4:????<?????????<??????????>???? ??????>??????????>??????????=?? 5:???0.2??????0.35???????0.65???????0.9????? ?????20%?? ?35%???????65%???????90%? 六年級上冊數(shù)學(xué)補充習(xí)題第67頁答案? 1:??75%????????87.5%????????40%??? ?????66.7%??????215% ?71.4%? 2:??3/100????????1/2???????????????1/8??? ??????3/250????????18/5?????????????3/400? 3:???1/4????????????4/25????????????7/9??? ??????0.25??????????0.16????????????0.778 ?25%??????????16%????????????77.8%? 4:???80%???????????375%??????????700%? 5:?百分?jǐn)?shù)?64%? 150%? 66.7%? 0.5%?? 35%? 小數(shù)? 0.64 ? 1.5 ?0.667? 0.005? 0.35? 分?jǐn)?shù)? 16/25? 3/2? 2/3? 1/200? 7/20? 六年級上冊數(shù)學(xué)補充習(xí)題第68頁答案? 1:???⑴??24÷50=48%?????????? ⑵??26÷50=52%? ??????⑶??24÷26≈0.923=92.3%?? 2:???8÷11≈0.727=72.7%?? 3:???14870÷51100=29.1%????????1-29.1%=70.9%? 六年級上冊數(shù)學(xué)補充習(xí)題第69頁答案? 1:??⑴??接種????????⑵??總?cè)藬?shù)????????⑶??鹽?????????鹽水?? 2:???90%??????93.3%??????83.3%???????86.7%?? 3:???140÷160=87.5%?? 4:???17÷20=85%? 六年級上冊數(shù)學(xué)補充習(xí)題第70頁答案? 1:???⑴(25-20)÷20=5÷20=25%? ??????⑵??(25-20)÷25=5÷25=20%? 2:?????(90-60)÷60=30÷60=50%? 3:??????(16-14﹚÷16?=2÷16=12.5%? 4:??????66÷55=120%???? ?????????(66+55﹚÷?55=121÷55=220%? 六年級上冊數(shù)學(xué)補充習(xí)題第71頁答案? 1:??⑴??(40-24)÷24=16÷24≈66.7%????? ⑵???(24+16)÷24=40÷24≈166.7%? 2:??⑴??250÷(250+750)=250÷1000=25%? ???⑵????250÷750≈33.3%?????? ??⑶???(750-250)÷250=200%? 六年級上冊數(shù)學(xué)補充習(xí)題第72頁答案? 1:??860×5%=43?? 2:??2400×20%=480?? 3:??2×(1-20%)=2×80%?=1.6?? 4:???7500×10%+7500?=750+7500?=8250?? 5:????100×0.8×1%?=0.8? 六年級上冊數(shù)學(xué)補充習(xí)題第73頁答案? 1:??6000×3×4.25%=765???? ????6000+441=6765?? 2:??4000×1×3.25%+4000?=130+4000=4130?? 3:??60000×2/3×5×4.75%=9500?? 4:??4000×(1-14%)×1×3.25%=111.8? ?????4000×(1-14%)+111.8=3440+111.8=3551.8? 六年級上冊數(shù)學(xué)補充習(xí)題第74頁答案? 1:????70???????95?????????六??????????八八?? 2:????360×80%=288?????????440×75%=330????????2100×88%=1848?? 4:????306÷360=85% 打八五折?? 5:???56÷85%=70? 六年級上冊數(shù)學(xué)補充習(xí)題第75頁答案? 1:???6.2×5%=0.31?? 2:?10×40%=40000元=4萬元? 40000×1×3.25%=0.13萬元?????? ????4+0.13=4.13萬元? 3:???76.5÷90=85%??????????打八五折?? 4:??5800×90%×90%=4698? 六年級上冊數(shù)學(xué)補充習(xí)題第76頁答案? 1:???x-20%=15????????????x+40%x=0.42?????? ? ??80%x=15?????? 1.4x=0.42????? ??????????x=18.75?????????? ?x=0.3? ?2:??????⑴??總?????????已打的??????????還剩的 ???????解設(shè):??……? ????????????x-40%x=12???????? ???????????????0.6x=12????????? ??????????????????x=20?? ?⑵???總??????????第一天運的????????????第二天運的??????????? ?????解設(shè):???……????? ??????????????x-55%x=18???????? ????????????????0.45x=18???????? ???????????? ???????x=40?? 3:??????60÷(1-75%)?=?60÷25%?=240? 六年級上冊數(shù)學(xué)補充習(xí)題第77頁答案? 4:???⑴??120÷25%=480????????? ⑵???360÷(1-25%)=360÷75%=480?? 5:???⑴??80×(1-45%)=80×55%=44?? ??????⑵???44÷(1-45%)=44÷55%?=80? 六年級上冊數(shù)學(xué)補充習(xí)題第78頁答案? 1:???x-65%x=0.7???????????????x+30%x=39????????? ????? ?0.35x=0.7??????????????????1.3x=39?????????? ???????? x=2???????????????????????x=30?? 2:?????⑴??x+25%x=120??????? ?????? ?1.25x=120?????????? ?????????? ?x=96?? ???????⑵??35÷(1-37.5%)=35÷0.625=56? 六年級上冊數(shù)學(xué)補充習(xí)題第79頁答案? 3:????130÷(1-20%)?=130÷1.3=100? 4:??解設(shè):…… ?????x-20%x=2.4?????? ????????0.8x=2.4?????? ???????????x=3?? 5:????⑴???0.12÷10%=1.2?? ⑵????解設(shè):……? ????????x+10%x=1.32???? ??????????1.1x=1.32????? ?????????????x=1.2? 六年級上冊數(shù)學(xué)補充習(xí)題第80頁答案? 1:??⑴???x+3/4x=84??????????? ??????? ?7/4x=84???????? ???????????????x=48?????????? ?????84-48=36?? ⑵???x+62.5%x=65?? ????????1.625x=65??????????? ????????? ???x=40??????? ?????????65-40=25?? 2:????一月份用電x度,二月份用電80%x度。??????? ????? x+80%x=126????? ???????????????1.8x=126???? ??????????????????x=70? ????????????80%x=80%×70=56? 六年級上冊數(shù)學(xué)補充習(xí)題第81頁答案? 3:??解設(shè):?x-20%x=24??????? ??????????? ??80%x=24? ?x=30????????? ?????????20%x=20%×30=6?? 4:????解設(shè):?男生x人,女生5/6x人。????????????? ???????x+5/6x=88?????????? ????????11/6x=88????????????????????? ??????x=48????????????????? ???5/6x=48x5/6=40?? 5:???解設(shè):核桃為x,栗子2/5x????????? ????x-2/5x=3/4???????????????????? ????? ?3/5x=3/4???????????????????? ?????? ??x=5/4?????????????? ????2/5x=2/5×5/4=1/2?? 6:????解設(shè):……????????????? 1/6x+1/8x=35????????????? ????4/24x=35??????????????????? ???x=120? 六年級上冊數(shù)學(xué)補充習(xí)題第82頁答案? 1:??⑴??七? ???亞 ? ?? ? ⑵? ?亞? ???非 2:??⑴? ?乒乓球? ?? ?? ? ? ?? ⑵? ?排球? ???籃球 3: 分?jǐn)?shù) 7/10 6/5 1/4 3/10 7/20 小數(shù) 0.7 1.2 0.25 0.3 0.35 百分?jǐn)?shù) 70% 120% 25% 30% 35% 六年級上冊數(shù)學(xué)補充習(xí)題第83頁答案? 4:???1.02>7/8>0.857>85%>2/3>66% 5:???62.5%??????25%??????10%??????2.5%?? 6:???93.75%????92%???????95%?????≈91.7%????????? ?朱艷紅???????劉琪琪?? 7:????(13-11.7)÷13=1.3÷13=10%? 六年級上冊數(shù)學(xué)補充習(xí)題第84頁答案? 1:???1-8%x=1.38?????????????????x+120%x=7.7 ????92%x=1.38 ?2.2x=7.7 ???????x=1.5????????????????? ??????x=3.5?? 2:?????800+800×2×3.75%=800+60=860?? 3:?????12.8×(1-90%)=12.8×0.1=1.28??萬元 ???????(12.8-1.28)×(1+10%)=11.52×1.1=12.672??萬元 4:?????27÷60%÷3=15? 六年級上冊數(shù)學(xué)補充習(xí)題第85頁答案? 5:360÷(1-10%)=400?? 6:(23+22)÷30%?=45÷30%?=150?? 7:⑴??桃樹? 240÷(1+3/5)=240÷8/5=150?????? ???????蘋果??????150×3/5=90????????????? ⑵??桃樹???240÷(1-3/5)=240÷2/5??=600?????????????? ??????蘋果? 600-240=360?? 8:母雞???60÷(1-2/5)=60÷3/5?=100?????- 1.請仔細(xì)閱讀文檔,確保文檔完整性,對于不預(yù)覽、不比對內(nèi)容而直接下載帶來的問題本站不予受理。
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