Question

2.9x0.55×0.29×22×0.024×23的简便方法？

Answer 1

四则运算2.9×0.55×0.29×22×0.024×23
解题思路：四则运算规则（按顺序计算、先算乘除后算加减，有括号先算括号，有乘方先算乘方）即脱式运算（递等式计算）需在该原则前提下进行
解题过程：

2.9×0.55×0.29×22×0.024×23

=1.595×0.29×22×0.024×23

=0.46255×22×0.024×23

=10.17610×0.024×23

=0.24422640×23

=5.61720720

存疑请追问，满意请采纳

Answer 2

2.9×0.55+0.29×2.2+0.029×23
＝2.9×0.55+2.9×0.22+2.9×0.23
＝2.9×（0.55+0.22+0.23）
＝2.9×1
＝2.9

Answer 3

中间应该是加号才对吧