Showing Your Working · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.
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Show what you did

Mathematics · Mathematical Thinking · ages 5-6
Name ______________________   Date ____________

  1. Tom has 9 blocks and gives away 3. He will draw blocks, then cross some out. How many blocks should he draw before crossing any out?

    Answer: ______________

  2. Jo draws 4 dots and 2 more dots to add. She counts only the 2 new dots. What should she do to find the total?

    • Count both groups
    • Count only the starting group
    • Count only the new group
    • Count both groups twice

  3. Leo solved 3 + 2. How can he show how he got his answer?

    • Draw both groups and count every dot
    • Say '5' without showing any steps
    • Draw a dog instead of showing the two groups

  4. A friend is explaining their working. What should you do?

    • Agree without checking the steps or objects
    • Listen, check, then give a reason
    • Copy the answer without checking the steps

  5. Which steps show 8 take away 1 in order?

    • Draw 1, cross out 8, then count what is left
    • Draw 8, add 1 more, then count all the dots
    • Draw 8, cross out 1, then count what is left
    • Draw 7, cross out 1, then count what is left

  6. Lena is showing 7 take away 2. She draws 7 stars but crosses out only 1. How many more stars must she cross out?

    Answer: ______________

  7. A drawing has 9 apples with 4 crossed out. 'How do you know 5 are left?' Which reply explains the check?

    • I counted all 9 apples
    • I counted the apples without crosses
    • I counted just the 4 crossed-out apples
    • I counted each apple twice

  8. Mia draws 6 dots and erases 2, leaving 4. A friend sees only the 4 dots. Which new drawing shows both what Mia started with and what she took away?

    • Draw 6 dots and cross out 2
    • Keep 4 dots with none crossed out
    • Draw 6 dots and cross out all 6

  9. Sam shows 5 blocks and 2 more blocks, then says the total is 8. Which reply gives a checked reason?

    • I agree because you said 8
    • I disagree. Counting both groups gives 7
    • I agree because I count 8 blocks in those two groups

  10. Ali says, 'I started with 10 blocks. I took away some blocks and counted what was left.' Which question asks about the missing step?

    • What colour were the blocks?
    • Where did you put the blocks before counting?
    • Who gave you the blocks?
    • How many blocks did you take away?
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Answer key

For grown-ups. Fold this page away before handing over the rest.

Show what you did W1-mt_nyK25mNOeR-s1

  1. 9 · Draw all 9 starting blocks. Cross out the 3 given away after that.
  2. Count both groups · Addition puts both groups together. Counting all the dots gives 6.
  3. Draw both groups and count every dot · Drawing the dots lets Leo show every step of his counting.
  4. Listen, check, then give a reason · Listen to the steps and check that they fit the problem. Then say whether you agree.
  5. Draw 8, cross out 1, then count what is left · Start with 8, show 1 taken away, then count the 7 dots left.
  6. 1 · She needs 2 crosses in all. She already has 1, so she needs 1 more.
  7. I counted the apples without crosses · The apples without crosses are the ones left. Counting them gives 5.
  8. Draw 6 dots and cross out 2 · Six dots with two crosses show the starting number and what was taken away. Four dots without crosses show only what is left.
  9. I disagree. Counting both groups gives 7 · Counting both groups gives 7 blocks. That count is a reason to disagree with 8.
  10. How many blocks did you take away? · Ali has not said how many blocks he took away. Ask for that number to check the step.
Worksheet · LightMySky