Question

8.6*4.6+4.6*1.9的简算

Answer 1

8.6*4.6+4.6*1.9

= 4.6*(8.6+1.9)

= 4.6*10.5

= 4.6*10 + 4.6*0.5

= 46 + 4.6÷2

= 46 +2.3

= 48.3

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