18.3-6.25-3.75+12.7 简便计算 求解答
18.3-6.25-3.75+12.7 简便计算 求解答
解:
18.3-6.25-3.75+12.7
=18.3+12.7-(6.25+3.75)
=31-10
=21
12×14么怎简便计算? 求解答
12×14
=(10+2)x14
=10x14+2x14
=140+28
=168
希望帮到你 望采纳 谢谢 加油
3.75x99-3.75 92x6.25简便计算
3.75x99-3.75+98x6.25
=3.75x(99-1)+98x6.25
=3.75x98+98x6.25
=(3.75+6.25)x98
=10×98
=980
3.8+4.29+2.1+2.4简便计算,求解答
3.8+4.29+2.1+2.4
=(3.8+0.2)+(4.09+2.1+2.4)
=4+8.59
=12.59
2+3/8×12简便计算,求解答
2+3/8X12
=2+3/8X8+3/8X4
=2+3+3/2
=5+1+1/2
=6又2分之1
299x8脱式计算简便计算,求解答!
(300-1)*8
=300*8-1*8
=2400-8
=2392
正确
求解答18.76x9.9+18.76的简便计算
18.76x9.9+18.76
=18.76x(10-0.1)+18.76
=187.6+18.76-1.876
=206.36-1.876
=204.484
18.76×9.9+18.76×1=18.76×(9.9+1)=18.76×10.9=18.76×10+18.76×0.9=204.484
2021-11-22 广告