75乘以299加上75的简便运算
问题描述:
75乘以299加上75的简便运算
答
75*99+75
=75*300
=22500
答
75x299+75
=75X(299+1)
=75x300
=22500
答
75*299+75
=75*(299+1)
=75*300
=22500