问题 解答题

脱式计算:

81×7÷9(502-247)÷525×16+294636÷(2×3)

答案

(1)81×7÷9,

=567÷9,

=63;

(2)(502-247)÷5,

=255÷5,

=51;

(3)25×16+294,

=400+294,

=694;

(4)636÷(2×3),

=636÷6,

=106.

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