Question

7×6+199脱式计算怎么算？

Answer 1

7×6+199脱式计算是：
7×6+199=42+200-1=241

Answer 2

因为199=200-1，所以原式等于7×6+200-1=42+200-1=242-1=241。

Answer 3

99×7加199×2加199用脱式计算 =199×(7+2+1)=199×10 =1990

Answer 4

7×6+199
=42+199
=241

Answer 5

7×6+199
=42+199
=241