问题 解答题

脱式计算.

147+52×2

104÷2+497

351×(56÷7)

469-735÷7.

答案

(1)147+52×2

=147+104

=251;

(2)104÷2+497

=52+497

=549;

(3)351×(56÷7)

=351×8

=2808;

(4)469-735÷7

=469-105

=364.

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