发布网友 发布时间:2024-01-18 15:39
共1个回答
热心网友 时间:2024-02-17 17:28
你好
147×8+8×53
=8×(147+53)
=8×200
=1600
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这道题这样算,
算式(159+1)×8=160×8=1280,
就是这个意思
134×8+8×66=8×(134+66)=8×200=1600
356-147-53
=356-(147+53)
=356-200
=156
53*8+53*3-53
=53x8+53x3-53x1
=53x(8+3-1)
=53x10
=530
326一147一53
=326一(141+53)
=326一200
=126
原式
=99x8
=(100-1)x8
=100x8-1x8
=800-8
=792
975x147-53
=1000X147-147X25-53
=147000-148X25-53+25
=147000-14800/4-28
=147000-3700-28
=143300-28
=143272
3200÷8÷8
=400÷8
=50
120×8÷120×8
=8×8
=64