问题 解答题

用简便方法计算.

8×26×125

138+29+262

78000÷4÷25.

答案

(1)8×26×125

=8×125×26

=1000×26

=26000;

(2)138+29+262

=138+262+29

=400+29

=429;

(3)78000÷4÷25

=78000÷(4×25)

=78000÷100

=780.

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