题目内容
【题目】脱式计算(能简算的要简算)
(1)+5.36++4.64
(2)17255÷85×49﹣749
(3)21×+48×12.5%+11×
(4)(×+)×
(5)[2+(5.4﹣3)×1]÷3
(6)5﹣(1+3)
【答案】11;9198;10;;;.
【解析】解:(1)+5.36++4.64
=++(4.64+5.36)
=1+10
=11;
(2)17255÷85×49﹣749
=203×49﹣749
=9947﹣749
=9198;
(3)21×+48×12.5%+11×
=(21+48+11)×
=80×
=10;
(4)(×+)×
=(+)×
=×
=;
(5)[2+(5.4﹣3)×1]÷3
=[2+×]÷3
=[2+]÷3
=×
=;
(6)5﹣(1+3)
=5﹣5
=.
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