计算下面各题,怎样简便就怎样计算.4.05÷0.5+10.756.8×2.7+2.7×3.20.38×
计算下面各题,怎样简便就怎样计算.4.05÷0.5+10.756.8×2.7+2.7×3.20.38×10270.3-17.48÷7.60.125×0.6×808.5×1...
计算下面各题,怎样简便就怎样计算.4.05÷0.5+10.756.8×2.7+2.7×3.20.38×10270.3-17.48÷7.60.125×0.6×808.5×1.2÷3.4.
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(1)4.05÷0.5+10.75
=8.1+10.75
=18.85
(2)6.8×2.7+2.7×3.2
=(宴棚6.8+3.2)×2.7
=10×2.7
=27
(3)慎拦0.38×102
=0.38×(100+2)晌孝则
=0.38×100+0.38×2
=38+0.76
=38.76
(4)70.3-17.48÷7.6
=70.3-2.3
=68
(5)0.125×0.6×80
=0.125×80×0.6
=10×0.6
=6
(6)8.5×1.2÷3.4
=10.2÷3.4
=3
=8.1+10.75
=18.85
(2)6.8×2.7+2.7×3.2
=(宴棚6.8+3.2)×2.7
=10×2.7
=27
(3)慎拦0.38×102
=0.38×(100+2)晌孝则
=0.38×100+0.38×2
=38+0.76
=38.76
(4)70.3-17.48÷7.6
=70.3-2.3
=68
(5)0.125×0.6×80
=0.125×80×0.6
=10×0.6
=6
(6)8.5×1.2÷3.4
=10.2÷3.4
=3
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