7.2×0.32+0.64×1.9-0.32简便运算
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7.2×0.32+0.64×1.9-0.32简便运算
7.2×0.32+0.64×1.9-0.32简便运算
7.2×0.32+0.64×1.9-0.32简便运算
7.2×0.32+0.64×1.9-0.32
=7.2×0.32+0.32*2×1.9-0.32
=(7.2+2*1.9-1)*0.32
=10*0.32
=3.2
=7.2×0.32+0.32×2×1.9-0.32
=7.2×0.32+0.32×3.8-0.32
=0.32×(7.2+3.8-1)
=0.32×10
=3.2
7.2*0.32+0.64*1.9-0.
7.2×0.32+0.64×1.9-0.32简便运算
(0.64+0.32)/0.64简便计算
6.78*0.32-0.64简便方法
(22.4-12.8)/0.64/0.
1.9除以0.32约等于多少
x-0.64x=7.2.解方程!
简便计算6.32^2-6.32*0.64+0.32^2
(7.2×3.8)÷(3.6×1.9)简便计算
3.8-1.9+7.2-8.1(用简便方法)
25分之17*1.9+0.32*10分之19
1.8/x=7.2/0.
1、0.64*7.2+3.6*2.722、0.78*0.45*0.1/7.8/0.045
6.27×3.6+37.8×0.36 369×0.99+3.69 (0.64+0.32)÷0.64 13.5×2.5-0.35×25的简便算法
19.98×37-199.8×1.9 1998×0.
1.1×1.9+1.1×7.2+0.99巧算一定要巧算
6.72*3.6+37.8*0.36的简便计算怎么写?还有369*0.99+3.69=(0.64+0.32)/0.64=13.5*2.5-0.35*25=
0.8(x-1.5)=0.32.x=2还是等于1.9