300×28÷30×13简便运算怎么算?

2024-11-15 18:35:11
推荐回答(2个)
回答1:

原式=300÷30x28x13
=10x28x13
=10x28x10+10x28x3
=2800+30x28
=2800+30x30-30x2
=2800+900-60
=3700-60
=3640

回答2:

原式=300/30*13*(30-2)
=130*30-130*2
=3900-260
=3640