(1/2)简算 24+53×99+29 123×170+1230×83 360×{15÷60}_数学解答

(1/2)简算 24+53×99+29 123×170+1230×83 360×{15÷60}

人气：109 ℃　时间：2020-04-13 02:00:03

解答

24+53×99+29
=53+53×99
=53×1+53×99
=53(1+99)
=53×100
=5300
123×170+1230×83
=1230×17+1230×83
=1230×(17+83 )
=1230×100
=123000
360×{15÷60}
=360×15×1/60
=6×15=90