四年级小数脱式计算
答案:3 悬赏:60 手机版
解决时间 2021-03-12 02:24
- 提问者网友：感性作祟
- 2021-03-11 07:42
四年级小数脱式计算
最佳答案
- 五星知识达人网友：独行浪子会拥风
- 2021-03-11 08:12
23.5+14.8+36.5
=23.5+36.5+14.8
=60+14.8
=74.8
19.4+30.6+45.62
=50+45.62
=95.62
33.5+24.9+51.3
=58.4+51.3
=109.7
39.7×2.8+3.97×72
=3.97×10×2.8+3.97×72
=3.97×28+3.97×72
=3.97×（28+72）
=3.97×100
=397
32×1.2×52
=38.4×52
=1996.8
1.2×2+2.8×2
=【1.2+2.8】×2
=4×2
=8
2.5×2-1.5×2
=[2.5-1.5]×2
=1×2
=2
25×1/4+25×0.25
1.999-1+0.001
99×0.365+0.365
=23.5+36.5+14.8
=60+14.8
=74.8
19.4+30.6+45.62
=50+45.62
=95.62
33.5+24.9+51.3
=58.4+51.3
=109.7
39.7×2.8+3.97×72
=3.97×10×2.8+3.97×72
=3.97×28+3.97×72
=3.97×（28+72）
=3.97×100
=397
32×1.2×52
=38.4×52
=1996.8
1.2×2+2.8×2
=【1.2+2.8】×2
=4×2
=8
2.5×2-1.5×2
=[2.5-1.5]×2
=1×2
=2
25×1/4+25×0.25
1.999-1+0.001
99×0.365+0.365
全部回答
- 1楼网友：猎心人
- 2021-03-11 11:11
题呢
- 2楼网友：逃夭
- 2021-03-11 09:48
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