Missing numbers
The whole chart with single gaps, with hidden rows and columns or almost empty, so pupils discover how it is built.
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Teaching guide: how to use the hundred chart
The hundred chart (also called the 100 chart or hundred square) sets the numbers 1 to 100 out in rows of ten: each row keeps the same tens and each column the same ones. Working with it helps pupils understand place value, skip count and work out +1, −1, +10 and −10 mentally. This free hundred chart worksheet generator builds A4 worksheets with big squares for Kindergarten to Grade 2, with an answer key.
- For
- Pre-K & K K · Elementary 1st, 2nd (ages 5-7)
- Subject
- Mathematics › Number Sense
- Includes
- Student sheet and answer key
- Format
- A4, to print or save as PDF; new exercises every time
- Price
- Free, no sign-up
- Available in
- Catalan, Spanish, English
Student worksheet 
Answer key Neighbours
The number before and after, the +1, −1, +10, −10 cross and, at level 3, all eight neighbours, diagonals included.
Chart pieces
Pieces of 3 to 7 squares with just one number written in: a jigsaw that makes pupils think in rows and columns.
Skip counting
Strips of ten numbers in ones, twos, fives and tens, counting on and, at level 3, counting back.
Colour the pattern
Skip count and colour the numbers you say: columns and diagonals appear that prepare the times tables.
Three charts and an answer key
Chart 1 to 100, 0 to 99 or, at level 3, 101 to 200. The answer key shows the missing numbers in blue and shades the patterns.
Frequently asked questions about hundred chart worksheets
Which grades are these worksheets for?
Kindergarten, Grade 1 and Grade 2 (Reception to Year 3). Level 1 of each type is for starting out (Kindergarten and Grade 1), level 2 for practice (Grade 1) and level 3 for Grade 2, which moves on to three-digit numbers (the 101 to 200 chart).
Which chart should I choose: 1 to 100 or 0 to 99?
The 1 to 100 chart is the most common in class. The 0 to 99 chart has the advantage that every row starts with the same tens (20, 21… 29), which makes place value easier to see. The 101 to 200 chart is for level 3.
Does each piece have only one answer?
Yes. Each piece is a real part of the chart with one number written in: since the square to the right is always 1 more and the square below 10 more, every other square is fixed.
Do the worksheets repeat?
No. Every exercise you add is new, and selecting it on the sheet and clicking "New" gives you new gaps, pieces, numbers and jumps with the same settings. No piece or neighbour repeats within one exercise.
Can I mix several exercise types on one worksheet?
Yes. Add exercises of different types and levels; each one has its own instruction. Then drag them or use "Up" and "Down", add a page break wherever you like, and even mix them with exercises from other generators, such as mental maths drills.
What other worksheets go well with the hundred chart?
To keep practising calculation, the mental maths drills and the addition and subtraction worksheets; for counting in 2s, 5s and 10s, the skip counting dot-to-dot pictures and, in Grade 2, the times tables worksheets. Find every resource under maths worksheets.
How do I print only the answer key?
Click Print and choose "Answer key", or "Worksheet and answer key" for both. Your browser's print dialog can also save it as a PDF.
Is any pupil data sent anywhere?
No. Worksheets are generated in your browser and templates are saved in your browser's memory.
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