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472﹢819-172954-187-654139×18-39×1884-(456﹢408)÷24(214﹢76)×(39-27)402÷6×13-287.

题目详情
472﹢819-172
954-187-654
139×18-39×18
84-(456﹢408)÷24
(214﹢76)×(39-27)
402÷6×13-287.
▼优质解答
答案和解析
(1)472﹢819-172,
=472-172+819,
=300+819,
=1119;

(2)954-187-654,
=954-654-187,
=300-187,
=113;

(3)139×18-39×18,
=(139-39)×18,
=100×18,
=1800;

(4)84-(456﹢408)÷24,
=84-864÷24,
=84-36,
=48;

(5)(214﹢76)×(39-27),
=290×12,
=3480;

(6)402÷6×13-287,
=67×13-287,
=871-287,
=584.