苏教版五年级上册数学练习与测试第79页答案
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1: 3.5 0.35 0.035 0.35 0.035
2: 0.0448 0.8692 0.045 0.0756
3: 1.4×0.6=0.84 0.6×0.6=0.36 0.84--0.36=0.48
4: 0.008×2.5=0.02 0.008×0.65=0.0052
5: 8.4×15.7=131.88
6: ⑴ 23.5×﹙1+1.4﹚ =23.5×2.4 =56.4 ⑵ 23.5×(1.4--1) =23.5×0.4 =9.4
7: 0.36 0.4356 0.443556 0.44435556 0.4444355556 |
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