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四位以下七年级有理数加减法混合运算70道,只要计算题!
人气:429 ℃ 时间:2020-03-23 02:29:04
解答
-38)+52+118+(-62)= (-32)+68+(-29)+(-68)= (-21)+251+21+(-151)= 12+35+(-23)+0= (-6)+8+(-4)+12 = 27+(-26)+33+(-27) 12+35+(-23)+0= 39+[-23]+0+[-16]= [...
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