递等式计算.(能简便计算的可用简便方法计算)9.37-4.7+0.63 4.05÷0.81+4.2 0.125×32×0.25 4.8
答案:1 悬赏:60
解决时间 2021-01-24 17:47
- 提问者网友:十年饮冰
- 2021-01-24 05:17
递等式计算.(能简便计算的可用简便方法计算)9.37-4.7+0.63 4.05÷0.81+4.2 0.125×32×0.25 4.8
最佳答案
- 二级知识专家网友:刀戟声无边
- 2021-01-24 05:45
(1)9.37-4.7+0.63,
=(9.37+0.63)-4.7,
=10-4.7,
=5.3;
(2)4.05÷0.81+4.2,
=5+4.2,
=9.2;
(3)0.125×32×0.25,
=0.125×8×4×0.25,
=(0.125×8)×(4×0.25),
=1×1,
=1;
(4)4.8×99+4.8,
=4.8×(99+1),
=4.8×100,
=480
(5)5.11-1.25-0.75,
=5.11-(1.25+0.75),
=5.11-2
=3.11;
(6)1.76-[(0.74+0.26)÷0.8],
=1.76-[1÷0.8],
=1.76-1.25,
=0.51.
=(9.37+0.63)-4.7,
=10-4.7,
=5.3;
(2)4.05÷0.81+4.2,
=5+4.2,
=9.2;
(3)0.125×32×0.25,
=0.125×8×4×0.25,
=(0.125×8)×(4×0.25),
=1×1,
=1;
(4)4.8×99+4.8,
=4.8×(99+1),
=4.8×100,
=480
(5)5.11-1.25-0.75,
=5.11-(1.25+0.75),
=5.11-2
=3.11;
(6)1.76-[(0.74+0.26)÷0.8],
=1.76-[1÷0.8],
=1.76-1.25,
=0.51.
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