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急求30道有理数加法计算题
人气:260 ℃ 时间:2020-04-12 21:26:20
解答
(1)(-9)-(-13)+(-20)+(-2)= (2) 3+13-(-7)÷6= (3) (-2)-8-14-13= (4) (-7)×(-1) ÷7+8 =(5) (-11)×4-(-18) ÷18 =(6) 4+(-11)-1÷(-3) =(7) (-17)-6-16÷(-18) =(8) 5÷7+(-1)-(-8) =(9) (-1)×(-1)+15...
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