计算下面各题,可别忘了能简算时要简算! 56.9×0.47-13.5 12.5×(100+8) 9.4×10.1 93.7×0
计算下面各题,可别忘了能简算时要简算!56.9×0.47-13.512.5×(100+8)9.4×10.193.7×0.32+93.7×0.6880×476×125×02...
计算下面各题,可别忘了能简算时要简算! 56.9×0.47-13.5 12.5×(100+8) 9.4×10.1 93.7×0.32+93.7×0.68 80×476×125×0 2.52×101.
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(1)56.9×0.47-13.5
=26.743-13.5
=13.243
(2)12.5×(100+8)
=12.5×100+8×12.5
=1250+100
=1350
(3)9.4×10.1
=9.4×(10+0.1)
=9.4×10+0.94
=94+0.94
=94.94
(4)93.7×0.32+93.7×0.68
=93.7×(0.32+0.68)
=93.7×1
=93.7
(5)80×476×125×0=0
(6)2.52×101
=2.52×(100+1)
=2.52×100+2.52
=252+2.52
=254.52
=26.743-13.5
=13.243
(2)12.5×(100+8)
=12.5×100+8×12.5
=1250+100
=1350
(3)9.4×10.1
=9.4×(10+0.1)
=9.4×10+0.94
=94+0.94
=94.94
(4)93.7×0.32+93.7×0.68
=93.7×(0.32+0.68)
=93.7×1
=93.7
(5)80×476×125×0=0
(6)2.52×101
=2.52×(100+1)
=2.52×100+2.52
=252+2.52
=254.52
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