Ответ:

1) 12 + 8 + 97 = 117

12 + 3 + 97 = 112

2) 26 + 14 + 83 = 123

26 + 7 + 83 = 116

3) 49 + 51 + 38 = 138

49 + 62 + 38 = 149

4) 20 * 5 * 15 = 1500

20 * 4 * 15 = 1200

5) 25 * 4 * 5 = 500

25 * 12 * 5 = 1500

6) 8 * 125 * 12 = 12000

8 * 3 * 12 = 288

Пошаговое объяснение:

1. 12 + 8+ 97=117

12+ 3+ 97=112

2.26 +14+ 83= 123

26 + 7 + 83 = 116

3. 49 + 51 + 38= 138

49 + 62 + 38 = 148

4. 20× 5×15= 1500

20×4×15= 1200

5. 25×4×5= 500

25×12×5=1500

6. 8×125× 12= 12000

8×3×12= 288