Question

5.2×0.32+2.4×0.64怎么简便计算？

Answer 1

你好，这道题简便计算可以利用乘法分配律。先化简得5.2x0.32+2.4x2x0.32，提取公因数0.32得0.32x(5.2+4.8)=0.32x10=3.2。

Answer 2

5.2X0.32十2.4X0.64
=2.6Ⅹ0.64十2.4Ⅹ0.64
=5X0.64
=3.2

Answer 3

因为2.4×0.64=2.4×2×0.32=4.8×0.32，所以原式等于5.2×0.32+4.8×0.32运用乘法分配律逆运算就是有0.32×（5.2+4.8）=3.2

Answer 4

把二点四乘以零点六四看做二点四乘以二再乘以零点三二，也就是四点八乘以零点三二。五点二加上四点八等于十。十乘以零点三二等于三点二。

Answer 5

=2.6*2*0.32+2.4*0.64
=2.6*0.64+2.4*0.64
=0.64*（2.6+2.4）
=0.64*5
=3.2