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合理灵活地计算:228+125+27525×63×426×125×8×3139+234+161+166.

题目详情
合理灵活地计算:
228+125+275                        25×63×4
26×125×8×3                       139+234+161+166.
▼优质解答
答案和解析
(1)228+125+275
=228+(125+275)
=228+400
=628

(2)25×63×4
=(25×4)×63
=100×63
=6300

(3)26×125×8×3
=26×(125×8)×3
=26×1000×3
=26000×3
=78000

(4)139+234+161+166
=(139+161)+(234+166)
=300+400
=700