问题 解答题

522-322÷7

39×8÷6

(483+217)×24.

答案

(1)522-322÷7,

=522-46,

=476;

(2)39×8÷6,

=312÷6,

=52;

(3)(483+217)×24,

=700×24,

=700×(20+4),

=700×20+700×4,

=14000+2800,

=16800.

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