9.9*2.6-2.6+2.6*1.1怎样简便计算

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9.9*2.6-2.6+2.6*1.1怎样简便计算

9.9*2.6-2.6+2.6*1.1怎样简便计算
9.9*2.6-2.6+2.6*1.1怎样简便计算

9.9*2.6-2.6+2.6*1.1怎样简便计算
9.9*2.6-2.6+2.6*1.1
=2.6×(9.9-1+1.1)
=2.6×10
=26

9.9*2.6-2.6+2.6*1.1
=2.6*(9.9-1+1.1)
=2.6*10
=26

9.9*2.6-2.6+2.6*1.1
=9.9*2.6-1*2.6+1.1*2.6
=(9.9+1.1-1)*2.6
=10*2.6
=26