关于小数的加减乘除口算题(要有答案)

如题所述

0.75 ÷ 15 = 0.05
0.4 × 0.8 = 0.32
4 × 0.25 = 1
0.36 + 1.54 = 1.9
1.01 × 99 = 99.99
420 ÷ 35 = 12
25 × 12 = 300
135 ÷ 0.5 = 270
3/4 + 1/4 = 1
2 + 4/9 = 2 4/9
3 - 2/3 = 7/3
3/4 - 1/2 = 1/4
1/6 + 1/2 - 1/6 = 1/2
7.5 - (2.5 + 3.8) = 1.2
7/8 + 3/8 = 1
3/10 + 1/5 = 1/2
4/5 - 7/10 = 1/10
2 - 1/6 - 1/3 = 1.5
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