你可能感兴趣的试题
-2-2=0 -5-3+2=-10 -6-6=-12 -7-3+4=-14
﹣3﹣(﹣2)=﹣5 5﹣(﹣3)=1 ﹣3﹣|﹣3|=0 5﹣|+4|=1
﹣7﹣8=﹣1 5+(﹣2)=3 ﹣6+0=0 4﹣13=9
3a·2a=5a 3a·2a=5a2 3a·2a=6a 3a·2a=6a2
3a﹣a=2 ﹣42=﹣16 3a+b=3ab ﹣5﹣2=﹣3
a5+a5=a10 a3÷a﹣1=a2 a•2a2=2a4 (﹣a2)3=﹣a6
2-5= -3 (-2)+(-5)=-7 (-3)2=-9 (-2)-(-1)=-1
2+a=2a 2a﹣3a=1 3a+2b=5ab 5ab﹣ab=4ab
-5-(-3)=-8 +5-(-4)=1 -5-∣-5∣=0 +5-(+7)=-2
﹣12﹣8=﹣4 ﹣5+4=﹣9 ﹣1﹣9=﹣10 ﹣32=9
﹣5+4=﹣9 ﹣8﹣8=0 23=6 ﹣42=﹣16
3a2﹣6a2=﹣3 (﹣2a)•(﹣a)=2a2 10a10÷2a2=5a5 ﹣(a3)2=a6
a5+a5=a10 3a5•2a3=6a8 a10÷a2=a5 (3a4)3=9a12
2a+2b=4ab 3x2﹣x2=2 5mn﹣5nm=0 a﹣a=a2
a5+a5=a10 a5÷a5=0 a2•a3=a5 a4﹣a3=a
(﹣5)﹣(﹣5)=﹣10 (﹣13)﹣(+6)=﹣19 0﹣(﹣11)=﹣11 (﹣8)﹣(+10)=2
(﹣3)﹣(﹣5)=﹣8 (﹣3)+(﹣5)=+8 (﹣3)3=﹣9 ﹣32=﹣9
x5+x5=x10 x5·x5=x10 (x5)5=x10 x20÷x2= x10
﹣3﹣2=﹣5 ﹣|2|=2 1÷(﹣3)= ﹣2×3=6
3a-a=2 -42=-16 3a+b=3ab -5-2=-3