11乘22加2.2乘890简便运算

2025-03-24 12:58:10
推荐回答(4个)
回答(1):

11*22+2.2*890
=110*2.2+2.2*890
=2.2*(110+890)
=2.2*1000
=2200

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回答(2):

11×22+2.2×890
=11×22+22×89
=(11+89)×22
=100×22
=2200

回答(3):

11×22+2.2×980
=11×22+22×98
=22×(11+98)
=11×2×109
=11×218
=2398

回答(4):

11x22+22x89=(11+89)x22=100x22=2200