题目内容
计算。
(1)25×
×0.4×
(2)2.8×125%+2.2×125%
(3)6.34×37+0.0634×3600+0.27×634
(1)原式=25×0.4×(
×
)
=10×
=1
=10×
=1
(2)原式=(2.8+2.2)×125%
=5×125%
=6.25
=5×125%
=6.25
(3)原式=6.34×37+6.34×36+27×6.34
=6.34×(37+36+27)
=6.34×100
=634
=6.34×(37+36+27)
=6.34×100
=634
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