(3.2*1.5+2.5)/1.6 6/4-1.6/4 6-1.19*3-0.43 3.2*(1.5+2.5)/1.6
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(3.2*1.5+2.5)/1.6 6/4-1.6/4 6-1.19*3-0.43 3.2*(1.5+2.5)/1.6 麻烦你了,都是简便,我不会请你教教
最后一个题目了
今天累了
(3.2*1.5+2.5)/1.6
=3.2*1.5÷1.6+2.5÷1.6
=2*1.5+25/16
=3+25/16
=4又16分之9
6/4-1.6/4
=1.5-0.4
=1.1
6-1.19*3-0.43
=6-1*3-0.19*3-0.43
=6-3-0.57-0.43
=3-1
=2
3.2*(1.5+2.5)/1.6
=3.2÷1.6*4
=2*4
=8
今天累了
(3.2*1.5+2.5)/1.6
=3.2*1.5÷1.6+2.5÷1.6
=2*1.5+25/16
=3+25/16
=4又16分之9
6/4-1.6/4
=1.5-0.4
=1.1
6-1.19*3-0.43
=6-1*3-0.19*3-0.43
=6-3-0.57-0.43
=3-1
=2
3.2*(1.5+2.5)/1.6
=3.2÷1.6*4
=2*4
=8
(3.2*1.5+2.5)/1.6 6/4-1.6/4 6-1.19*3-0.43 3.2*(1.5+2.5)/1.6
(3.2×1.5+2.5)÷1.6
[(3*3*1.5)+3.14*1.6^2/4*5]*7.
找规律写数8,4,0,(),(),()…… -2.5;-4.15;-6.25;();();();…… 1,-1.6,-6
1.6(-1又4/5)(-2.5)(-3/8)的计算过程 代表乘
1.6×(-4/5)×(-2.5)×(-3/8)用简便方法计算
简算4649.05÷0.7×1.6×0.4÷3.2×1.5 ..
解比例.( )比3.2=4比1.6 0.03比0.9=( )比2.7
1.5*(6+9.728/3.2)用托式计算
2.4/2.5+1.6*2.5
1.6.3.2平均数
0.4,0.8,1.6,3.2