
4.8÷0.03 7.5÷0.03 8.1÷0.03简便计算怎么做?
展开全部
4.8÷0.03+7.5÷0.03+8.1÷0.03
=4.8÷3/100+7.5÷3/100+8.1÷3/100
=4.8×100/3+7.5×100/3+8.1×100/3
=(4.8+7.5+8.1)×100/3
=20.4×100/3
=680
=4.8÷3/100+7.5÷3/100+8.1÷3/100
=4.8×100/3+7.5×100/3+8.1×100/3
=(4.8+7.5+8.1)×100/3
=20.4×100/3
=680
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