120000×0.125+0.06375
120000÷0.125+0.06375
9+15-8(5+13-9)
-9 x -2
-9x-2
10(15÷5+6)+9
-5-(-3)
-5+(-3)
-5+[-3]
6
±
√
(
−
)
2
4
⋅
3
