Level 1
Fill in the blank. Do not reduce the fraction to the simplest form.
14 + 24 = _____
1 m
Level 1
Fill in the blank.
15 + _____ = 45
1 m
Level 1
Fill in the blank.
35 - 15 = ____
1 m
Level 1
Fill in the blank.
45 - _____ = 15
1 m
Level 1
Fill in the blank.
_____ - 15 = 25
1 m
Level 1
Fill in the blank.
1 - 13 = _____
1 m
Level 1
Fill in the blank.
1 - _____ = 25
1 m
Level 1
Fill in the blank.
38 + _____ = 78
1 m
Level 2
Find the following values without a calculator.

Do not simplify the answer.
  1. 47 + 27 = _____
  2. 59 + 39 = _____
  3. 310 + 510 = _____
  4. 412 + 712 = _____
3 m
Level 2
Find the following values without a calculator.
Do not simplify the answer.
  1. 45 - 25 = _____
  2. 67 - 27 = _____
  3. 311 - 111 = _____
  4. 512 - 212 = _____
3 m