运用乘法分配律进行简便计算:6.4×3.7+6.4×6.3=6.4×(3.7+6.3)=6.4×10=64
6.4x3.7+6.4x6.3=6.4x(3.7+6.3)=6.4x10=64运用乘法分配律。