列式计算.(1)76除500与120的差,再乘以14,积是多少?(2)最大的三位数与最小的三位数的和与它们的差

2025-04-25 18:00:52
推荐回答(1个)
回答1:

(1)[(500-120)÷76]×14,
=[380÷76]×14,
=5×14,
=70;
答:积是70.

(2)(999+100)-(999-100),
=1099-899,
=200;
答:相差是200.