(+1)+(-2)
(-1)-(-2)
()-(+2)
37-(-13)
(–23)–(–27)
(-4) ×(-3)
(-7) ÷(-5)
36(-9)
(-48)(-6)
(-32)4(-8)
-80+29
(-5) ×(-3);
│-36│-│-24│
(-3)×(-)×(-5)
(–1)+(+2)
–(–27)–27
(-7)×4;
(-3)×9;
–(+4)+7
(-3) ×(-)
│-3│×│-│
(-3)+(-4)
(-17)+18
(-10)+(+5)
100+(-90)
(-28)+37;
(-29)+(-31);
(-23)+0; 45+(-45)
(-25)+(-7);
(-13)+5;
45+(-23);
(+17)+(-21)
(-3)×4
(-4)3
-3×4
(–2)+(–8)
(–10)–(–8)
-2÷(-5)
(–10)+(+8)
–6–(–6);
–7–0;
0–(–7);
(–6)–6
9–(–11);
6-(-6)
76道,自己挑,,都是幼儿园的题目了,只是练口算的...
追问(-0.8)+1.2+(-0.7)+(-2.1)+0.8+3.5这样的
追答排列组合,你懂得。。而且lz不能这么懒的,懂?我没时间了,,帮不了你
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