脱式计算,能简便的就简便运算.
4.6+5.4×6
4.9×0.46+4.9×0.54
32﹣2.3×6
(0.4+4)×2.5
25﹣7.8﹣2.2
1.25×2.5×0.8×4.
脱式计算,能简算的要简算.
70.8﹣7.25﹣1.75
5.81+8.3+4.19+11.7
0.05×0.4×20×1.7
4.87×2.34+4.87×7.66.
计算,能简算的要简算.
1.8×5.46+1.8×4.54 16.38÷0.36﹣4.8 0.32×0.25×12.5
0.85+0.2×1.35 2.8÷3.5×4 2.64+8.67+1.33﹣1.64.
(1)7.74×(2.8﹣1.3)+1.5×2.26 (2)2.22×9.9+6.66×6.7
(3)(1.04×8.05)÷(3.24÷32.4) (4)1.8÷[(9.8﹣4.6)÷0.13﹣39.6]
(5)3.85×1.2+98×0.385﹣3.85 (6)15.6×13.1﹣15.6﹣15.6×2.1.
脱式计算,能简便计算的要简算.
(1)13÷0.4÷2.5 (2)64×4.5+36×4.5
(3)1.25×2.5×0.8 (4)1.5×101﹣1.5
(5)14.64+3.7×2.8 (6)2.8×7.3+0.27×28.
0.79+0.79×99= 1÷5+1÷5= 0.89×101﹣0.89= 2﹣0.64﹣0.36=
1.1﹣2.7÷27= 12.4×11﹣12.4= 1.25×3.3×0= 20﹣3.7﹣7.3=
5×0.75÷1.5×0.75= 1﹣0.1×0.1= 6×0.125×8= 1×0.4÷1×0.4=
脱式计算(能简算的要简算)
12.65﹣(3.65+8.5) 7.8+9+7.8 4.82﹣0.25+1.25+0.25
9.99﹣4.8 1.36+6.7+4.3 1.36﹣1.36+25.2.
试题篮
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