2134-835+66-265的简便算法
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2134-835+66-265的简便算法
你好:
2134-835+66-265
=2134+66-835-265
=(2134+66)-(835+265)
=2200-1100
=1100
2134-835+66-265
=(2134+66)-(835+265)
=2200-1100
=1100
(2134+66)-(835+265)
=2200-1100
=1100
2134-835+66-265
=(2134-835)-(265-66)
=1299-199
=1100