Interactive Hundreds Chart
Tap squares to colour them, show odd and even numbers or skip counting, and hide numbers for a missing numbers game. Put it up on the board full screen, or print an A4 chart. Free, with no sign-up.
Tap a square to colour it.
Ready for more than the chart? Australian teachers sell hundreds chart puzzles, skip counting games, place value activities and number sense warm-ups, most for under $5.
Number sense resources by Aussie teachers
A hundreds chart for the board and for every desk
A hundreds chart shows the numbers in rows of ten, so the patterns in our number system are easy to see: every number in a column ends in the same digit, and each row down adds ten. This one works on an interactive whiteboard, a laptop or a phone. Tap squares to colour them, circle a pattern, hide numbers, and press Full screen to put it up for the class.
Ways to use it in class
- Skip counting: circle the multiples of 2, 5 or 10 and count along them together. Ask what students notice about the columns.
- Odd and even: circle the odd numbers and talk about why they make stripes down the chart.
- Missing numbers: hide 10 numbers at random. Students say each missing number and how they know it (one more, ten less), then you tap to reveal it.
- Ten more, ten less: colour a number, then colour the number ten more and ten less. Students see that moving down a row adds ten.
- Number of the day: colour one number and ask for its neighbours, the tens and ones, and whether it is odd or even.
- Patterns that cross: circle the multiples of 3, colour the multiples of 4, and look for the numbers that are both.
Which year levels use a hundreds chart?
Hundreds charts are used most from Foundation to Year 2, for counting, skip counting and ordering numbers, and the 120 chart fits Year 1, where students work with numbers to at least 120. Older students use the same chart for multiples, factors and number patterns. For more ideas, see the number sense activities guide, or try the free interactive number line.
Frequently asked questions
Is this hundreds chart free?
Yes. The interactive chart and the printable PDF are free to use and photocopy for your class, with no sign-up.
Should I use a 1 to 100 or a 0 to 99 chart?
Both are common. A 0 to 99 chart keeps every number in a row with the same tens digit (30 to 39 all sit together), which helps with place value. A 1 to 100 chart matches counting objects, where the first one is 1. Many teachers start with 1 to 100 and move to 0 to 99 once students are looking at tens and ones.
Why is there a 120 chart?
In the Australian Curriculum (version 9), Year 1 students read, write and order numbers to at least 120. The 120 chart shows students that counting keeps the same pattern past 100: 101, 102, 103, just like 1, 2, 3.
How do I play the missing numbers game?
Press Hide 10 at random (or tap squares while Hide or show is chosen) to make gaps in the chart. Students work out each missing number from the numbers around it, then you choose Hide or show and tap the gap to reveal it.
Can I save or share a chart I have set up?
Yes. The link in the address bar always matches the chart, including colours, circles and hidden numbers. Press Copy link to paste it into a lesson plan, a slide or a message to another teacher.
How do I print a blank hundreds chart?
Under Print an A4 chart, choose Blank and press Download PDF. Choose As on screen to print the chart with your colours, circles and gaps, which makes a quick fill in the missing numbers worksheet.