Addition and subtraction · Within 20 · Set 1

Primary 1 Math20 questionsNo calculatorQuick practice

20 quick sums within 20, including missing numbers and adding three numbers.

Answer all 20, then press Check.

  1. 117 −= 10
  2. 23 + 7 + 1 =
  3. 314 − 11 =
  4. 46 − 2 =
  5. 5+ 9 = 14
  6. 612 − 5 =
  7. 712 + 6 =
  8. 8+ 14 = 17
  9. 9+ 5 = 15
  10. 109 + 1 + 2 =
  11. 1118 −= 2
  12. 1210 − 7 =
  13. 133 + 6 + 8 =
  14. 1413 −= 11
  15. 1516 −= 12
  16. 1614 + 4 =
  17. 17+ 10 = 18
  18. 184 + 2 + 1 =
  19. 191 + 12 =
  20. 209 + 10 =

Finished the set?

Keep the streak going with the next one.

Next: Within 20 · Set 2 →