问题
计算题
脱式计算。(能简算的要简算)
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答案
(1)原式=2.07×2.8=5.769
(4)原式=0.28×(200+2)
=0.28×200+0.28×2
=56+0.56
=56.56
=5×2.4
=12
=32.5×(8+0.2)-213.2
=260+6.5-213.2
=53.3
脱式计算。(能简算的要简算)
|
(1)原式=2.07×2.8=5.769
(4)原式=0.28×(200+2)
=0.28×200+0.28×2
=56+0.56
=56.56
=5×2.4
=12
=32.5×(8+0.2)-213.2
=260+6.5-213.2
=53.3