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Hundreds Chart: Missing Numbers (Hard)

Tip: download the PDF for Letter or A4 paper, print it at 100% and use a pencil or crayon. Tap "Show solution" to check your answer, or print it as an answer key.

Up nextSkip Counting by 2s Hundreds Chart →

70 of the 100 numbers are missing. To fill each gap, children look at the number before or after it in the row (one more, one less) or above and below it (ten more, ten less). With only 30 numbers left, children rebuild most of the chart from the pattern: a real place value challenge. The answers are shaded on page 2.

Also try: Apple Hundreds Chart Mystery Picture · Number Line 0–100 · Blank Ten Frames

Ways to use this chart

  • 70 squares are blank. Find the number before and after each one.
  • Ten more is straight down, ten less is straight up.
  • Check your work against page 2.
  • Time yourself: how long do the 70 gaps take? Try the next level when it feels easy.

See also the other hundreds charts, the 0–100 number line and the 1–10 multiplication chart.

For teachers and parents

What it practises
Counting to 100, number order, place value patterns
How to use it
Fill each gap from the numbers around it: left and right are one less and one more, up and down are ten less and ten more. Answers on page 2.
Time
About 20–30 minutes

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Printing tips

  • Laminate a chart, or put it in a sheet protector, and use counters or a dry-erase marker for games.
  • Cut a printed chart into strips or puzzle pieces and ask children to put it back together.
  • For mystery pictures, cross out each number in the key as you colour it.