Respuesta:
1. 85
2. 38
3. 148
4. 19
5. 1540
6. 66
7. 7
8. 20
9. 308
Explicación paso a paso:
20-3 = 17
17 x 5 = 85
60/2 = 30
30 + 16 - 8 = 38
166 - 45 + 27 = 148
2 x 4 = 8
3 x 3 = 9 9 + 8 + 7 = 24 - 5 = 19
7 x 1 = 7
2600 - 1000 - 60 = 1540
20-13 = 7 -> 15 + 7 =
22 x 3 = 66
22 + 13 = 35
35 / 5 = 7
56 - 42 = 14
14 - 8 = 6
14 + 6 = 20
276 - 89 = 365 - 57 = 308
