脱式计算.(能简算的要简算)12.56-6.64-3.36 45.5-(0.98+5.5) 13.6+7.94+6...
答案:1 悬赏:40
解决时间 2021-01-12 21:21
- 提问者网友:星軌
- 2021-01-12 01:26
脱式计算.(能简算的要简算)12.56-6.64-3.36 45.5-(0.98+5.5) 13.6+7.94+6...
最佳答案
- 二级知识专家网友:傲气稳了全场
- 2021-01-12 02:57
(1)12.56-6.64-3.36
=12.56-(6.64+3.36)
=12.56-10
=2.56;
(2)45.5-(0.98+5.5)
=45.5-5.5-0.98
=40-0.98
=39.02;
(3)13.6+7.94+6.4
=13.6+6.4+7.94
=20+7.94
=27.94;
(4)10+0.009+0.191
=10+(0.009+0.191)
=10+0.2
=10.2;
(5)15-3.7-4.64
=11.3-4.64
=6.66.
=12.56-(6.64+3.36)
=12.56-10
=2.56;
(2)45.5-(0.98+5.5)
=45.5-5.5-0.98
=40-0.98
=39.02;
(3)13.6+7.94+6.4
=13.6+6.4+7.94
=20+7.94
=27.94;
(4)10+0.009+0.191
=10+(0.009+0.191)
=10+0.2
=10.2;
(5)15-3.7-4.64
=11.3-4.64
=6.66.
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