1. **Stating the problem:** Given examples 19 → 26 ← 7 and 19 → 12 ← 7, find the value in the box (□) for the given pairs of numbers with arrows pointing to the box. 2. **Understanding the examples:** - Example 1: 19 → 26 ← 7 - Example 2: 19 → 12 ← 7 We observe two different results for the same pair (19 and 7), so likely two different operations are used. 3. **Hypothesis:** - For the first example, the box value is the sum: $19 + 7 = 26$ - For the second example, the box value is the difference: $19 - 7 = 12$ 4. **Applying the same logic to the questions:** - When the box is on the right (→ □ ←), the box value is the sum of the two numbers. - When the box is on the left (□ ← number number), the box value is the difference of the two numbers (subtract the right number from the left number). 5. **Solving each question:** 1. $\boxed{25 - 13 = 12}$ 2. $\boxed{28 - 14 = 14}$ 3. $46 + 29 = 75$ 4. $18 - 18 = 0$ 5. $21 + 13 = 34$ 6. $400 + 350 = 750$ 7. $419 - 101 = 318$ 8. $160 + 49 = 209$ 9. $31 + 24 = 55$ 10. $155 - 105 = 50$ 11. $305 - 105 = 200$ 12. $81 + 45 = 126$ 6. **Final answers:** 1. 12 2. 14 3. 75 4. 0 5. 34 6. 750 7. 318 8. 209 9. 55 10. 50 11. 200 12. 126 This completes the solution based on the pattern observed in the examples.