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5.5x5%1.1x15的简便方法

5.5×5-15×1.1 =1.1×5×5-15×1.1 =1.1×25-15×1.1 =1.

6.5x15.8-6.5x5.8 =6.5x(15.8-5.8) =6.5x10 =65

5.5x8.2+1.8x5.5 =5.5x(8.2+1.8) =5.5x10 =55

48×(15-5) =48×10 =480

(5.7+2.3)*5.5=44

5/6-5/11X5/6 =5/6*(1-5/11) =5/6*6/11 =5/11

5x(99+1)=5x100=500.如果你认可我的回答, 请及时点击【采纳为满意回答】按

方法一、 5.95÷(1.2+0.5)x5 =(6-0.05)÷(1.2+0.5)x5 =(1.2x

需要将题中的一个乘号改成加号方可简便计算,否则只能按运算顺序计算。 5.7x3.6+5.7x5.4

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