用简便方法计算35x[265一(159+65)]

Question

用简便方法计算35x[265一(159+65)]

Answer 1

35x[265-(159+65)]

=35x（265-159-65)
=35x（265-65-159）
=35x（200-159）
=35x41
=35x(40+1)
=35x40+1x35
=140+35
=175
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Answer 2

35x[265一(159+65)]
=35x(265-65-159)
=35x(200-159)
=35x41
=1435

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Answer 3

35x[265一(159+65)]

=35×【265-224】
=35×41
=35×40+35
=1400+35
=1435