3.14X40X3十3.14X(40÷4)x2等于多少?

2025-02-01 05:12:33
推荐回答(3个)
回答1:

3.14X40X3十3.14X(40÷4)x2
=3.14x120+3.14x20x2
=3.14x(120+40)
=3.14x160
=502.4

回答2:

3.14X40X3十3.14X(40÷4)x2
=3.14×120+3.14×20
=3.14×140
=439.6
请采纳,谢谢

回答3:

原式=3.14×(120+20)
=3.14×140
=439.6.