Hundred Chart: Fill In the Missing Numbers 1-100

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Grade KMathCounting & Number SenseCCSS K.CC.A.1CCSS K.CC.A.2

Skill: Writing the missing numbers on a 1-100 chart

10 versions, each with its own answer key

Same skill and layout, a fresh set of problems in every version, so children can keep practicing without repeating a page. Problems are not repeated between versions unless a skill has only a small number of possible problems (for example, the addition facts within 10).

• Version 1: Sheet · Key · Both
• Version 2: Sheet · Key · Both
• Version 3: Sheet · Key · Both
• Version 4: Sheet · Key · Both
• Version 5: Sheet · Key · Both
• Version 6: Sheet · Key · Both
• Version 7: Sheet · Key · Both
• Version 8: Sheet · Key · Both
• Version 9: Sheet · Key · Both
• Version 10: Sheet · Key · Both

Download all 10 versions (one PDF)All 10 answer keys (PDF)

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About this worksheet

A hundred chart shows the numbers from 1 to 100 in ten rows of ten. It is one of the best tools for learning to count to 100, because the patterns are easy to see. This kindergarten worksheet gives a full hundred chart with 25 empty squares. Children find each empty square and write the missing number.

The blanks are scattered across the whole chart, so children practice small numbers like 7 and big numbers like 86 on the same page. To fill a square, they can count on from the number just before it, or look at the number above it and think one ten more. Across the ten versions, every number from 1 to 100 is left blank before any blank repeats.

How to use it: start by counting the first row out loud together while your child points to each number. Then show how each row starts with a number that ends in 1 and finishes with a ten: 10, 20, 30. Ask, "What number comes after 39?" and let your child check by looking at the next row. A highlighter makes it easy to mark each row once it is finished.

The answer key shows the whole chart with the missing numbers in red. This worksheet supports Common Core standards K.CC.A.1 (count to 100 by ones and by tens) and K.CC.A.2 (count forward beginning from a given number). Start with our Missing Numbers 1-20 worksheet if 100 feels like a big jump.