(2)13×8+26×31+39×10

(2)13×8+26×31+39×10
2025-02-11 18:41:29
推荐回答(1个)
回答1:

13×8+26×31+39×10

=13x(8+2x31+3x10)
=13x(8+62+30)
=13x100
=1300
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