我会巧算.
1.2×0.4+1.3×0.4 (1.25+0.36)×0.2 7.2×0.3+28×0.03 0.25×0.56×0.4
8×(2.5+0.125) 0.25×0.56×0.4 32.8+5.6+7.2 75.2﹣66.9﹣5.2.
能简算的要简算
0.76×230﹣30
9.2×l.85+3.65
(7.39+7.39+7.39+7.39)×2.5
0.78×101
0.25×28
4.2×l.36+1.36×5.8.
计算下面各题.
3.52+8.4+2.6
5.94+6.7+1.06+0.3
42.24﹣6.24﹣3.76
4.92+3.27﹣4.92+3.73.
计算我最棒.
(1)3.91×2.8+6.09×2.8 (2)3.5÷0.5÷0.7
(3)1﹣(6.75﹣3.5)÷13 (4)12.5×4.64×0.8
(5)(34.17÷1.7+1.6)×0.3 (6)0.175÷25÷0.4.
19﹣2.3×3.6
0.125×2.5×8×0.4
(18.02+12.58)×1.3
42.3÷0.09×1.8
0.35÷0.25×4
9.06×10.1﹣0.1×9.06.
递等式计算(能简算的要简算).
(1)9.76÷3.2×1.6
(2)(8+8)×12.5
(3)7.5×2.3+2.3×3.5﹣2.3
(4)10.5÷(5.3﹣4.6)+8.9.
递等式计算(能简便的用简便方法).
12.5×(0.7×0.8) 70.8﹣0.8×0.5 13﹣3.79+6.21
12.5×(40+0.7) 4.12﹣1.78﹣1.22 4.2÷0.7÷6.
试题篮
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