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-3-(-3) =-6 -3-3=0 -3÷3×3=-3 -3÷3÷3=-3
a+a2=2a3 a2•a3=a6 (2a4)4=16a8 (-a)6÷a3=a3
﹣7﹣8=﹣1 5+(﹣2)=3 ﹣6+0=0 4﹣13=9
(-14)-(+5)= -9 0-(-3)=3 (-3)-(-3)= -6 |5-3|= -(5-3)
a•a2=a3 (a3)2=a5 a+a2=a3 a6÷a2=a3
(-1)+(-6)=+7 (-3)-(-4)=-7 (-4)×(-3)=12 (-3)÷2=-1
3a﹣a=2 ﹣42=﹣16 3a+b=3ab ﹣5﹣2=﹣3
8x+4=12x 4y﹣4=y 4y﹣3y=y 3x﹣x=3
﹣3+2=1 20﹣1=1 ﹣32=﹣9 |+2|=﹣2
2-5= -3 (-2)+(-5)=-7 (-3)2=-9 (-2)-(-1)=-1
2+a=2a 2a﹣3a=1 3a+2b=5ab 5ab﹣ab=4ab
﹣2﹣(﹣5)=﹣3 |﹣2|=2 ﹣22=4 ÷(﹣4)=1
(﹣3)﹣(﹣5)=﹣8 (﹣3)+(﹣5)=+8 (﹣3)3=﹣9 ﹣32=﹣9
a+2a=3a2 a2+a3=a5 a3÷a=3 (-a)3=a3
﹣3﹣2=﹣5 ﹣|2|=2 1÷(﹣3)= ﹣2×3=6
(-14)-(+5)= -9 0-(-3)=0+(-3) (-3)×(-3)= -6 |3-5|= 5-3
-3-3=0 30+32=9 3÷|-3|=-1 3×(-3)-1=-1
3a-a=2 -42=-16 3a+b=3ab -5-2=-3