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(1)40+50+60+70+80=60×______.
(2)120+130+140+150+160=______×______.
(3)395-25-75=______-(25+75)
(4)800÷25÷4=______÷(25×4)
人气:267 ℃ 时间:2020-05-14 10:35:29
解答
(1)40+50+60+70+80=60×5;
(2)120+130+140+150+160=140×5;
(3)395-25-75=395-(25+75);
(4)800÷25÷4=800÷(25×4).
故答案为:5,140,5,395,800.
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