我会脱式计算.0.325÷2.5+3.97 2.16÷3.6÷0.5 18.4+4.3×2.8 ...
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解决时间 2021-03-06 20:23
- 提问者网友:城市野鹿
- 2021-03-06 07:45
我会脱式计算.0.325÷2.5+3.97 2.16÷3.6÷0.5 18.4+4.3×2.8 0.8×24.5-7.5 0.89×99+0.89 2.78+0.5×68.
最佳答案
- 五星知识达人网友:痴妹与他
- 2021-03-06 08:18
①0.325÷2.5+3.97
=0.13+3.97
=4.1;
②2.16÷3.6÷0.5
=3.6÷0.5
=7.2;
③18.4+4.3×2.8
=18.4+12.04
=30.44;
④0.8×24.5-7.5
=19.6-7.5
=12.1;
⑤0.89×99+0.89
=0.89×(99+1)
=0.89×100
=89;
⑥2.78+0.5×68
=2.78+34
=36.78.
=0.13+3.97
=4.1;
②2.16÷3.6÷0.5
=3.6÷0.5
=7.2;
③18.4+4.3×2.8
=18.4+12.04
=30.44;
④0.8×24.5-7.5
=19.6-7.5
=12.1;
⑤0.89×99+0.89
=0.89×(99+1)
=0.89×100
=89;
⑥2.78+0.5×68
=2.78+34
=36.78.
全部回答
- 1楼网友:你哪知我潦倒为你
- 2021-03-06 09:29
没看懂什么意思?
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