苏教版六年级下册数学补充习题第11到20页答案
由国家教育委员会评定出的有出版教材相关资质,能够由图书出版社编写、出版的教材;其中由江苏教育出版社出版的系列教材,简称苏教版。
今天学习啦小编要与大家分享的就是:苏教版六年级下册数学补充习题第11到20页的答案;具体内容如下,希望能帮助到各位!
苏教版六年级下册数学补充习题第11页答案
4: 3.14x2
x2+3.14x2x2x8
= 3.14x4x2+3.14x2x2x8
=25.12+100.48
=125.6
5: 花布
18÷2=9
3.14x9
x2
=3.14x81x2
=508.68
红布
3.14x18x80=4521.6
6: 31.4÷2÷3.14=5
3.14x5
x2+31.4x31.4
苏教版六年级下册数学补充习题第12页答案
1: ⑴ 底面积 高
⑵ V=Sh
⑶ 2.1
2: 图一
3.14x5
x9
=3.14x25x9
=706.5
图二
8÷2=4
3.14x4
x6
=3.14x16x6
=301.44
3: 0.4÷2=0.2
3.14×0.2
x3
= 3.14×0.04x3
=0.0942
苏教版六年级下册数学补充习题第13页答案
1:
圆柱 | 底面半径/cm | 底面直径/cm | 底面周长/cm | 高/cm | 体积/cm |
圆柱 | 3 | 6 | 18.84 | 5 | 141.3 |
圆柱 | 10 | 20 | 62.8 | 4 | 1256 |
圆柱 | 2 | 4 | 12.56 | 10 | 125.6 |
2: 6÷2=3
3.14x3
x10
=3.14x9x10
=282.6
3: 4÷2=2
3.14x2
x6
=3.14x4x6
=75.36
75.36<80 不能
4: 3.14x2
x2.5x550
=3.14x4x2.5x550
=17270
=17.27吨
苏教版六年级下册数学补充习题第14页答案
圆柱 | 底面半径/cm | 底面直径/cm | 底面周长/cm | 高 | 表面积/cm#FormatImgID_0# | 体积/cm3 |
圆柱 | 4 | 8 | 25.12 | 4 | 200.96 | 200.96 |
圆柱 | 10 | 20 | 62.8 | 6 | 1004.8 | 1884 |
圆柱 | 3 | 6 | 18.84 | 3 | 113.04 | 84.78 |
2: 12.56÷3.14÷2=2
3.14×2x100
=3.14×4x100
=1256
3: ⑴ 6÷2=3
3.14×3 x12
=3.14×9x12
= 399.12
⑵ 3.14x6x12+3.14x3x2
=3.14x6x12+3.14x9x2
=226.08+56.52
=282.6
苏教版六年级下册数学补充习题第15页答案
4: ⑴ 62.8÷2÷3.14=10
3.14x10+62.8x6
=3.14x100+62.8x6
=314+376.8
=690.8
690.8x3=2072.4
⑵ 3.14x10x6x1
=3.14x100x6x1
=1884吨
5: 5024÷3.14÷10
=5024÷3.14÷100
=16
6: 4÷2=2
3.14×2x10x1/5x3
=3.14×4x10x1/5x3
=75.36
≈75
苏教版六年级下册数学补充习题第16页答案
1: ⑴ 5 45
⑵ 1∶3
⑶ 7.5 22.5
⑷ 2
2: 3.14x3x8÷3
=3.14x9x8÷3
=75.36
8÷2=4
3.14x4x15÷3
=3.14x16x15÷3
=251.2
苏教版六年级下册数学补充习题第17页答案
3: 25.12x3÷3
=25.12
4: 16÷2=8
3.14x8
x21÷3
=3.14x64x21÷3
=1406.72
5: 4÷2=2
3.14x2
x1.5÷3
=3.14x4x1.5÷3
=6.28
6: ⑴ 15.7÷2÷3.14=2.5
3.14x2.5
=3.14x6.25
=19.625
⑵ 19.625x2.7÷3=17.6625
苏教版六年级下册数学补充习题第18页答案
1:
底面半径/cm | 底面直径 /cm | 底面周长/ cm | 高/ cm | 体积/立方厘米 | |
圆锥 | 3 | 6 | 18.84 | 5 | 47.1 |
圆锥 | 0.5 | 1 | 3.14 | 3 | 0.785 |
圆锥 | 9 | 18 | 56.52 | 2 | 169.56 |
2: 25.12÷3.14÷2=4
1/3x 3.14x4
x1.2x0.75
=1/3x 3.14x16x1.2x0.75
=15.072
≈15.1
3: 6÷2=3
3.14x3
x20+1/3x3.14x3
x4
=3.14x9x20+1/3x3.14x9x4
=565.2+37.68
=602.88
4: 1/3x3.14x2
x3÷2/7
=1/3x3.14x4x3÷2/7
=43.96
苏教版六年级下册数学补充习题第19页答案
名称 | 底面半径/cm | 底面直径/cm | 高/cm | 表面积/cm | 体积/cm |
圆柱 | 10 | 20 | 4 | 879.2 | 1256 |
圆柱 | 2 | 4 | 10 | 150.72 | 125.6 |
圆锥 | 2 | 4 | 0.9 | --------- | 3.768 |
圆锥 | 15 | 30 | 5 | ---------- | 1177.5 |
2: 1.8×3.5×4×0.5=12.6(千克)
3: 4÷2=2
用铁皮
3.14x4x6+3.14x2
=3.14x4x6+3.14x4
=75.36+12.56
=87.92
盛水
3.14x2x6
=3.14x4x6
=75.36
4: 7.5x8x1/3x7.8=156
苏教版六年级下册数学补充习题第20页答案
1: ⑴ × ⑵ √ ⑶ √ ⑷ ×
2: 图一
表面积
3.14x6x2+3.14x2x6x3
=3.14x36x2+3.14x2x6x3
=226.08+113.04
=339.12
体积
3.14x6x3
=3.14x36x3
=339.12
图二
表面积
8÷2=4
3.14x4x2+3.14x8x8
=3.14x16x2+3.14x8x8
=100.48+200.96
=301.44
体积
3.14x4x8
=3.14x16x8
=401.92
3: 圆锥体
1/3x8x6
=1/3x64x6
=401.92
=3.14x25x2+31.4x31.4
=157+985.96
=1142.96