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3.9×6.1+3.9簡便計算

題目不完整, 缺少運算符號, 在確認一下。

原式等于 6.1×(3.9+6.1) =6.1×10 =61 回答完畢~~ 有疑問請追問,

3.9x6.1+6.1x6.1 =(3.9+6.1)x6.1 =10x6.1 =61 乘

6.1×3.6+3.6×3.9的簡便計算方法:逆運用乘法分配律,計算即可; 解題過程: 6.1×3.

9.6*(101.3-1.3)=960

6.1×3.6+3.6×3.9 =3.6×(6.1+3.9) =3.6×10 =36 解析:經過觀察

6.1×3.6+3.6×3.9 =3.6×(6.1+3.9) =3.6×10 =36 解析:經過觀察

是乘6.1吧 原式 =1.27x(3.9+6.1) =1.27x10 =12.7

3.9+2.92+6.1-0.92=3.9+6.1+2.92-0.92=10+2=12

3.9x6.1+6.1x6.1的簡便計算 =6.1*(3.9+6.1) =6.1*10 =61 希

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