40×25÷80-3.4简便计算

40×25÷80-3.4简便计算
2025-05-17 12:51:16
推荐回答(4个)
回答1:

40×25÷80-3.4简便计算
=1000÷80-3.4
=12.5-3.4
=9.1

回答2:

40×25÷80-3.4
=25÷(80÷40)-3.4
=25÷2-3.4
=12.5-3.4
=9.1

回答3:

40×25÷80-3.4
=12.5×2×40÷80-3.4
=12.5×(80÷80)-3.4
=12.5-3.4
=9.1

回答4:

40×25÷80-3.4简便计算
=1000÷80-3.4
=12.5-3.4
=9.1
(因为40X25可以是1000,所以有简便计算)