CheerMath

Grade 1 Addition Practice

Add Within 20

Start adding! Put groups together in pictures, add numbers up to 20, find missing numbers, and solve addition stories.

Also known as Class 1 maths — the same topics, whether your school calls it grade, class or year.

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Sample questions

A few samples from this topic — try one, then show the answer.

  1. Add Two Numbers Within 10

    What is the value of 1  +  41 \; + \; 4?
    • 7
    • 6
    • 5
    • 8
    Show answer
    Answer:
    5

  2. Add Two Numbers Within 10

    Add up the numbers below.4+2\\ \begin{array}{cr} & 4 \\ + & 2 \\ \hline \end{array}
    Show answer
    Answer:
    6

  3. Compare Groups: More, Fewer, and Same

    Of 19 and 20, which is greater?
    • 19
    • 20
    • They are equal
    • 1
    Show answer
    Answer:
    20

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A worked example

What is the value of 1  +  41 \; + \; 4?
  1. The question puts 1 and 4 together, so we add.
  2. Start at the bigger number 4 and count on 1.\\The steps say 5.
  3. 1  +  4  =  51 \; + \; 4 \; = \; 5
  4. The other choices→\to6 counts the smaller number on twice instead of once.\\7 counts two steps too many.\\8 counts three steps too many.

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