7.2+2.8除4 0.25×3.2×1.25 简便计算

2025-03-01 12:47:17
推荐回答(2个)
回答1:

7.2+2.8除4
=7.2+0.7
=7.9
0.25×3.2×1.25 简便计算
=0.25x0.4x8x1.25
=(0.25x0.4)x(8x1.25)
=0.1x10
=1

回答2:

7.2+2.8÷4
=7.2+0.7
=7.9
0.25×3.2×1.25
=0.25X4X(0.8X1.25)
=1X1
=1