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能简算的用简算0.25×1.96×402.6×5.9+5.9×7.413.52×99+13.524.7×10212.5×4×0.8×2.52.92×0.2×4.3.
题目详情
能简算的用简算
能简算的用简算
0.25×1.96×40 2.6×5.9+5.9×7.4 13.52×99+13.52 4.7×102 12.5×4×0.8×2.5 2.92×0.2×4.3. 0.25×1.96×40 2.6×5.9+5.9×7.4 13.52×99+13.52 0.25×1.96×40 2.6×5.9+5.9×7.4 13.52×99+13.52 4.7×102 12.5×4×0.8×2.5 2.92×0.2×4.3. 4.7×102 12.5×4×0.8×2.5 2.92×0.2×4.3.
0.25×1.96×40 | 2.6×5.9+5.9×7.4 | 13.52×99+13.52 |
4.7×102 | 12.5×4×0.8×2.5 | 2.92×0.2×4.3. |
0.25×1.96×40 | 2.6×5.9+5.9×7.4 | 13.52×99+13.52 |
4.7×102 | 12.5×4×0.8×2.5 | 2.92×0.2×4.3. |
0.25×1.96×40 | 2.6×5.9+5.9×7.4 | 13.52×99+13.52 |
4.7×102 | 12.5×4×0.8×2.5 | 2.92×0.2×4.3. |
▼优质解答
答案和解析
(1)0.25×1.96×40
=0.25×40×1.96
=10×1.96
=19.6;
(2)2.6×5.9+5.9×7.4
=(2.6+7.4)×5.9
=10×5.9
=59;
(3)13.52×99+13.52
=13.52×(99+1)
=13.52×100
=1352;
(4)4.7×102
=4.7×(100+2)
=4.7×100+4.7×2
=470+9.4
=479.4;
(5)12.5×4×0.8×2.5
=12.5×0.8×4×2.5
=(12.5×0.8)×(4×2.5)
=10×10
=100;
(6)2.92×0.2×4.3
=0.584×4.3
=2.5112.
=0.25×40×1.96
=10×1.96
=19.6;
(2)2.6×5.9+5.9×7.4
=(2.6+7.4)×5.9
=10×5.9
=59;
(3)13.52×99+13.52
=13.52×(99+1)
=13.52×100
=1352;
(4)4.7×102
=4.7×(100+2)
=4.7×100+4.7×2
=470+9.4
=479.4;
(5)12.5×4×0.8×2.5
=12.5×0.8×4×2.5
=(12.5×0.8)×(4×2.5)
=10×10
=100;
(6)2.92×0.2×4.3
=0.584×4.3
=2.5112.
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