问题
计算题
脱式计算。(能简便的用简便方法计算) | |||||||||
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答案
(1)960-720÷8×9
=960-90×9
=150
=12×(736-41)
=8340
=7800+78
=7878
(4)400÷25÷4
=400÷100
=4
=927÷[630÷70]
=103
=125×8×11
=11000
(7)230×24+240×77
=240×(23+77)
=24000
=45×100
=4500
=800÷25×4
=128