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3.14x5+3.14x4等待于多少

你好: 3.14×3/5+3.14÷2.5 =3.14×3/5+3.14×3/5 =3.14×(3/5+2/5) =3.14×1 =3.14

628÷(1/3x3.14x5x5x4) =628×3÷(3.14×20×5) =3×628÷62.8÷5 =30÷5 =6

3.14x5与5x3.14的意义不相同。 3.14x5表示5个3.14相加 5x3.14表5的3.14倍

78.5

3.14×4.5+5.5×3.14 =3.14×(4.5+5.5) =3.14×10 =31.4

3.14×5×10+3.14×25/4×2 =3.14×25(2+1/2) =3.14×25×5/2 =196.25。

3.14X5X180/90+5X2 =41.4

3.14×5×5=78.5

3.14x14x5+2x3.14x36 =3.14 x (14 x 5 + 2 x 36) =3.14 x (70 + 72) =3.14 x 142 =445.88 希望我的回答对您有帮助,满意请采纳,谢谢。

3.14×5×0.4 =3.14×(5×0.4) =3.14×2 =6.28

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