> 数学 >
(-10)+(+6)
(+12)+(-4)
(-5)+(-7)
(+6)+(-9)
2/5+(-3/5)
(-1/3)+2/5
(-3 1/4)+(-1 1/12)
1/2 + (-2/3) + 4/5 + (-1/2) + (-1/3)
(+2/5)-(-3/5)
(-2/5)-(-3/5)
(-1/2)-1/3
人气:485 ℃ 时间:2020-01-27 12:59:26
解答
-4
8
-12
-3
-1/5
1/15
-13/3
-1/5
-1/5
1/5
-5/6
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