简便计算37×9.9等于多少?是脱式计算

简便计算37×9.9等于多少?是脱式计算
2025-04-07 00:05:01
推荐回答(3个)
回答1:

37*9.9
=37*(10-0.1)
=37*10-37*0.1
=370-3.7
=366.3

回答2:

37*9.9
=111*3.3
=(100+10+1)*3.3
=330+33+3.3
=366.3

回答3:

=37X(10一0.1)=37X10一37X0.1=370一3.7=366.3