请问56.5×9.9+5.65这类的题,该怎么才能明白怎么简算?

2024-11-15 10:01:39
推荐回答(3个)
回答1:

56.5×9.9+5.65
=56.5×9.9+56.5x0.1
=56.5x(9.9+0.1)
=56.5x10
=565
运用乘法分配律

回答2:


回答3:

56.5×9.9+5.65
=56.5X9.9+56.5X0.1 (统一位数)
=56.5X(9.9+0.1) (提取公因数)
=56.5X10
=565