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1.2×5.2一2.5÷0.3用简便方法计算

1.2×5.2一2.5÷0.3 =1.2x(5+0.2)-(2.4+0.1)÷0.3 =1.2x5+1.2x0.2-2.4÷0.3-0.1÷0.3 =0.3x4x5+0.24-8-1/3 =0.3x20+0.24-8-1/3 =6+0.24-8-1/3 =-2+0.24-1/3 ≈-2+0.24-0.34 =-2-0.1 =-2.1

1.2乘5.2减2.5除0.3简便计算 1.2乘5.2减2.5除0.3 =1.2*5.2-2.5÷0.3 =6.24- 2.5÷0.3 结果不是有限小数 核实算式

1.2×(5.2-2.5)÷0.3的脱式答案 解: 1.2×(5.2-2.5)÷0.3 =1.2x2.7÷0.3 =3.24÷0.3 =10.8

5.2÷1.3÷0.5 =4÷0.5 =8

1.25×2.3÷0.5+1.2的计算方法是什么 =1.25÷0.5×2.3+1.2 =2.5×2.3+1.2 =5.75+1.2 =6.95

2.2 解析: 2.5×0.3+1.2+0.25 =0.75+1.2+0.25 =(0.75+0.25)+1.2 =1+1.2 =2.2

5.2×0.5×0.3 =2.6×0.3 =0.78 你好,本题已解答,如果满意 请点右下角“采纳答案”。

=49÷5-(3.2×1+3.2×0.5) =(50÷5-1÷5)-(3.2+1.6) =(10-0.2)-4.8 =9.8-4.8 =5

5.2÷0.8÷1.3 =5.2÷1.3÷0.8 =4÷0.8 =5

3.08×0.5÷0.2 =3.08×0.5×1/5 =3.08×(0.5×1/5) =3.08×0.1 =0.308

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