早教吧作业答案频道 -->数学-->
简算谢谢大哥大姐们简算12.5x0.25x0.05x37x6.412.728除以2.5除以32除以0.125796.64x2534.128除以0.253700除以6.4除以212.5除以0.50.01+0.02+0.03+.+0.09+0.10+0.11+.+0.19+0.2
题目详情
简算 谢谢大哥大姐们
简算 12.5x0.25x0.05x37x6.4
12.728除以2.5除以32除以0.125
796.64x25
34.128除以0.25
3700除以6.4除以212.5除以0.5
0.01+0.02+0.03+.+0.09+0.10+0.11+.+0.19+0.2
简算 12.5x0.25x0.05x37x6.4
12.728除以2.5除以32除以0.125
796.64x25
34.128除以0.25
3700除以6.4除以212.5除以0.5
0.01+0.02+0.03+.+0.09+0.10+0.11+.+0.19+0.2
▼优质解答
答案和解析
12.5x0.25x0.05x37x6.4
=12.5×0.25×0.05×37×0.4×8×0.2
=12.5×8×0.25×0.4×0.05×0.2×37
=100×0.1×0.01×37
=3.7
12.728除以2.5除以32除以0.125
=12.728÷(2.5×4×8×0.125)
=12.728÷(10×1)
=1.2728
796.64x25
=199.16×4×25
=199.16×100
=19916
34.128除以0.25
=34.128÷1/4
=34.128×4
=136.512
3700除以6.4除以212.5除以0.5
=3700÷(0.8×4×212.5×2×0.5)
=3700÷(0.8×850×1)
=3700÷680
=370/68
=185/34
0.01+0.02+0.03+.+0.09+0.10+0.11+.+0.19+0.2
=0.01×(1+2+3+4+5+6+...20)
=0.01×(1+20)×20÷2
=0.01×21×10
=2.1
=12.5×0.25×0.05×37×0.4×8×0.2
=12.5×8×0.25×0.4×0.05×0.2×37
=100×0.1×0.01×37
=3.7
12.728除以2.5除以32除以0.125
=12.728÷(2.5×4×8×0.125)
=12.728÷(10×1)
=1.2728
796.64x25
=199.16×4×25
=199.16×100
=19916
34.128除以0.25
=34.128÷1/4
=34.128×4
=136.512
3700除以6.4除以212.5除以0.5
=3700÷(0.8×4×212.5×2×0.5)
=3700÷(0.8×850×1)
=3700÷680
=370/68
=185/34
0.01+0.02+0.03+.+0.09+0.10+0.11+.+0.19+0.2
=0.01×(1+2+3+4+5+6+...20)
=0.01×(1+20)×20÷2
=0.01×21×10
=2.1
看了 简算谢谢大哥大姐们简算12....的网友还看了以下:
0.25除以0.15,当除到商是1.6时,余数是0.01,为什么是0.01?我是这样算的,0.25 2020-05-16 …
1和0.999999(无限循环)比较,真的一样大?.0.9999……9除以3等于0.3333……3 2020-05-16 …
1和0.999(9循环)谁大?0.9999(9循环)是不断接近1的,所以应比1小,但1除以3得0. 2020-05-16 …
简算谢谢大哥大姐们简算12.5x0.25x0.05x37x6.412.728除以2.5除以32除以 2020-05-20 …
如果c除以a大于0,c除以b大于0,那么a除以b0;若xz除以y小于0,yz大于0,那么x0 2020-05-21 …
想一想,算一算,你有什么发现.9除以0.99除以19除以1.515除以0.615除以115除以53 2020-07-11 …
它不给我写出来.10.8除以1.2、2.52除以3.6、142.2除以0.18、197.6除以0. 2020-07-18 …
1.8除以0.9=0.205除以0.1=0.48除以0.24=7.8除以0.4=5.4除以2.7= 2020-07-18 …
0÷2=0理由?1楼的0只是不能做除数,OK?0确实不能除任何数但0可以除以非零实数请不要把"除"和 2020-11-04 …
若a除以b大于0,b除以c小于0,则b除以c()0,(填大于、小于或等于) 2021-02-05 …