89           5+14+3        7+70

1410        8+216-6        7+813

+2=5        6+=10        +2=9

4+=11        +8=13       7+=15

5-1=        10-2=        18-1=        8+3=

2+4=        6+9=        12-2=        14-1=

7+5=        9+7=        5+8=        9-7=

3+7=        10+3=       10-3=       8+7=

①8+8-1=

②2+3+5=

③9-3+8=

④15-5+2=

⑤6+4+9=

⑥10-4+7=