一点三二乘九点九加零点一三等于多少用简便计算
一点三二乘九点九加零点一三等于多少用简便计算
1.32×9.9+0.13
=1.32×(10-0.1)+0.13
=1.32×10-0.132+0.13
=13.2-(0.132-0.13)
=13.2-0.002
=13.198
三点五加四乘以零点一三等干多少?,简便计算
3.5+4×0.13=4.02
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4.32减四点三二乘零点九用简便计算怎么算
4.32-4.32×0.9
=4.32×(1-0.9)
=4.32×0.1
=0.432
三点九除以零点一七乘以五点一除以一点三的简便计算
3.9÷0.17×5.1÷1.3
=(3.9÷1.3)×(5.1÷0.17)
=3×30
=90
9.32乘93点二加七点八乘九点三二减九点三二的简便计算
9.32×93.2+7.8×9.32-9.32
=9.32×(93.2+7.8-1)
=9.32×100
=932
零点五乘零点三二乘一点二五乘零点025乘二用简便计算怎么算
0.5×0.32×1.25×0.025×2
=(0.5×2)×(0.8×1.25)×(0.4×0.025)
=1×1×0.01
=0.01
一点五八乘于九点九加上零点一五八用脱式简便计算
1.58×9.9+0.158
=1.58×9.9+1.58×0.1
=1.58×(9.9+0.1)
=1.58×10
=15.8
四x加7一点三等于九点九
4x+7-1.3=9.9
4x=4.2
x=1.05
一点三八乘一点二乘零点五怎样简便怎样计算
(1.2x0.5)x1.38
七点三二减去七点三二乘零点九用简便方
7.32-7.32*0.9=7.32*(1-0.9)
=7.32*0.1=0.732