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计算下面各题,能简便的用简便方法计算5×(63×2)47+236+6425×4470×(56-27)300-162÷18(432+168)÷30.
题目详情
计算下面各题,能简便的用简便方法计算
5×(63×2) | 47+236+64 | 25×44 |
70×(56-27) | 300-162÷18 | (432+168)÷30. |
▼优质解答
答案和解析
(1)5×(63×2)
=5×2×63
=10×63
=630;
(2)47+236+64
=47+(236+64)
=47+300
=347;
(3)25×44
=25×4×11
=100×11
=1100;
(4)70×(56-27)
=70×29
=2030;
(5)300-162÷18
=300-9
=291;
(6)(432+168)÷30
=600÷30
=20.
=5×2×63
=10×63
=630;
(2)47+236+64
=47+(236+64)
=47+300
=347;
(3)25×44
=25×4×11
=100×11
=1100;
(4)70×(56-27)
=70×29
=2030;
(5)300-162÷18
=300-9
=291;
(6)(432+168)÷30
=600÷30
=20.
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