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Detailed Explanation of Subtraction Facts Up to 20 ✏️🍎

Subtraction facts up to 20 are about taking away numbers from other numbers to find out how many are left. In Year 2, you will learn to subtract numbers within 20 easily. Subtraction means finding the difference between two numbers.

What is Subtraction? ➖

Subtraction is when you take away one number from another. For example, if you have 10 apples and you give away 3, you want to know how many apples you have left. So, you do 10 − 3 = 7.

Subtraction Facts Explained 🧮

Subtraction facts up to 20 help you know answers quickly without counting every time. Here are some simple examples:

  • 15 − 5 = 10
  • 20 − 7 = 13
  • 18 − 9 = 9

Easy Ways to Understand Subtraction Within 20 🖐️📏

  1. Use Number Lines:
    Draw a number line from 0 to 20. Start at the bigger number and count backwards the smaller number of steps.
    Example: To solve 14 − 6, start at 14 and count back 6 steps, landing on 8. So, 14 − 6 = 8.
  2. Use Fingers or Objects:
    Use your fingers or small toys to see how many are left after you take some away.
  3. Count Backwards:
    When you subtract, you count backwards from the bigger number by the smaller number.

Practice Subtraction Facts Within 20 🎲📚

  • Write subtraction number sentences like 12 − 4 = ? and try to solve them.
  • Try to solve with the help of a number line or objects.
  • Play subtraction games or use flashcards with numbers up to 20.

Summary 🔑

Subtraction facts up to 20 help you take away numbers and find out what’s left quickly and easily. Using number lines, objects, and counting backwards are great ways to learn and remember these facts. Keep practicing to get better every day!

20 Examination-Style Questions with Answers on Subtraction Facts Up to 20 for Year 2 📝✨

Here are 20 subtraction questions that Year 2 pupils can try to practise subtraction facts up to 20. These questions help you get better at taking one number away from another, which is an important skill in Year 2 Maths and fits with what you learn in Key Stage 1.

Questions:

  1. What is 15 − 7?
  2. Subtract 9 from 14.
  3. Find 20 − 11.
  4. What is 18 − 9?
  5. Take 8 away from 16.
  6. Calculate 17 − 5.
  7. What do you get if you subtract 6 from 13?
  8. Find the answer to 12 − 4.
  9. Take 3 from 19. What is left?
  10. What is 14 − 7?
  11. Subtract 10 from 20.
  12. What is 11 − 2?
  13. Calculate 16 − 8.
  14. Find 19 − 9.
  15. Take 15 − 6.
  16. What is 13 − 7?
  17. Subtract 11 from 18.
  18. Find 20 − 10.
  19. What do you get if you subtract 4 from 15?
  20. Calculate 17 − 8.

Answers:

  1. 15 − 7 = 8
  2. 14 − 9 = 5
  3. 20 − 11 = 9
  4. 18 − 9 = 9
  5. 16 − 8 = 8
  6. 17 − 5 = 12
  7. 13 − 6 = 7
  8. 12 − 4 = 8
  9. 19 − 3 = 16
  10. 14 − 7 = 7
  11. 20 − 10 = 10
  12. 11 − 2 = 9
  13. 16 − 8 = 8
  14. 19 − 9 = 10
  15. 15 − 6 = 9
  16. 13 − 7 = 6
  17. 18 − 11 = 7
  18. 20 − 10 = 10
  19. 15 − 4 = 11
  20. 17 − 8 = 9

Try working through these questions step-by-step. Remember, practising subtraction facts up to 20 will help you in all sorts of maths problems!

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