简便计算3.8x3.7+3.7x6.2=3.7x(3.8+6.2)=3.7x10=37
3.8x3.7+3.7x6.2=3.7×(3.8+6.2)=3.7×10=37
3.8x3.7+3.7x6.2的简算怎么算?3.8x3.7+3.7x6.2=3.7*(3.8+6.2)=3.7*10=37
3.8×3.7+3.7×6.2=(3.8+6.2)×3.7=10×3.7=37乘法分配率的逆运算