III. Write the missing numbers. 1) two + ten = ... 2) three + __ = nineteen 3) seventeen − four = ... 4) sixteen − one = ... 5) __ + five = twenty 6) six + seven = ...

Перевод задания: Запишите недостающие числа.

1. two + ten = twelve (2 + 10 = 12)
2. three + sixteen = nineteen (3 + 16 = 19)
3. seventeen − four = thirteen (17 − 4 = 13)
4. sixteen − one = fifteen (16 − 1 = 15)
5. fifteen + five = twenty (15 + 5 = 20)
6. six + seven = thirteen (6 + 7 = 13)