2+3=         17-2=         9-2=         5+6=          12+3+2=

4+5=         14-3=         9+6=         3+7=         15-5-4=

9+0=         10-4=         8+8=         4+9=         16-4+3=

9-4=         5+9=         13-3=          12+3=         12+5-4=

16－＝7         5＋＝13         ＋3＝11

14－＝4         6＋＝15         9－＝9

2+9=         7+5=          10+8=        6+9=

5+8=         4+8=           16–6=      9–5=

7+8 =         3+7=           9+4=         14+5=

6+8 =         5+9=           9+9=         18–6=

18–7+4=        17+2–6=       18–3–2=

19–5–5=         16–2-1=        3+5+9=