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Addition and subtraction to 100 – practice for Years 2–3

Sample questions on Addition and subtraction to 100 with the right answer and a worked solution, from easy to hard. In the Pickles Academy app a child gets new questions of the same kind every time, so they can't just learn the answers by heart.

Subject
Maths
Year
Years 2–3
Curriculum area
Number and algebra

Question types: Sums up to 100

Rule: Addition and subtraction to 100

Split the second number into tens and ones. Add (or subtract) the tens first, then the ones.

Example: 62 − 38: 62 − 30 = 32, 32 − 8 = 24

Watch out: Don’t mix up tens and ones: 45 + 30 = 75, not 48.

Sample questions

  1. Question 1 Easy

    Work out: 68 − 21 =

    Show the solution
    Answer: 47

    How it works: Tens first, then ones: 68 − 20 = 48, 48 − 1 = 47

  2. Question 2 Normal

    Work out: 22 − 21 =

    Show the solution
    Answer: 1

    How it works: Tens first, then ones: 22 − 20 = 2, 2 − 1 = 1

  3. Question 3 Hard

    Work out: 82 − 79 =

    Show the solution
    Answer: 3

    How it works: Tens first, then ones: 82 − 70 = 12, 12 − 9 = 3

Related topics

All Maths topics

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