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用简便方法计算8.8×0.1252.5×1.25×327.6×5.3+3.7×7.637÷0.25÷43.85×101-3.85(23+4.6)÷2.3.
题目详情
用简便方法计算 8.8×0.125 | 2.5×1.25×32 | 7.6×5.3+3.7×7.6 |
37÷0.25÷4 | 3.85×101-3.85 | (23+4.6)÷2.3. |
▼优质解答
答案和解析
(1)8.8×0.125
=(8+0.8)×0.125,
=8×0.125+0.8×0.125,
=1+0.1,
=1.1;
(2)2.5×1.25×32
=(2.5×4)×(1.25×8),
=10×10,
=100;
(3)7.6×5.3+3.7×7.6
=(5.3+3.7)×7.6,
=9×7.6,
=68.4;
(4)37÷0.25÷4
=37÷(0.25×4),
=37÷1,
=37;
(5)3.85×101-3.85
=(101-1)×3.85,
=100×3.85,
=385;
(6)(23+4.6)÷2.3
=23÷2.3+4.6÷2.3,
=10+2,
=12.
=(8+0.8)×0.125,
=8×0.125+0.8×0.125,
=1+0.1,
=1.1;
(2)2.5×1.25×32
=(2.5×4)×(1.25×8),
=10×10,
=100;
(3)7.6×5.3+3.7×7.6
=(5.3+3.7)×7.6,
=9×7.6,
=68.4;
(4)37÷0.25÷4
=37÷(0.25×4),
=37÷1,
=37;
(5)3.85×101-3.85
=(101-1)×3.85,
=100×3.85,
=385;
(6)(23+4.6)÷2.3
=23÷2.3+4.6÷2.3,
=10+2,
=12.
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