100 chart
Color numbers on a 1–100 or 1–120 grid and see the patterns in counting by 2s, 5s and 10s.
- Ages 5–8
- Counting to 100 and 120
Free math tools for kids
Five interactive math tools for ages 4 to 8 that open right here: a 100 chart, a number line, a ten frame, an analog clock and a place value chart. They are virtual manipulatives, so children can move things around and see how numbers work. There is nothing to sign up for and there are no ads.
The five math tools for kids
Number line
Drop a marker on a line from 0 to 10, 20 or 100, or draw hops to add and take away.
- Ages 5–8
- Number order
Ten frame
Fill one or two ten frames with counters in two colors and see how many more make 10.
- Ages 4–7
- Counting to 10 and 20
Analog clock
Watch the real time on a big clock face, or turn the hands to set any time.
- Ages 5–8
- Telling time to the hour and half hour
Place value chart
Build any number to 999 with base ten blocks, trade 10 ones for a ten, and read it in words.
- Ages 6–8
- Hundreds, tens and ones
What each tool helps with
- 100 chart: counting, skip counting, place value.
- Number line: number order, counting on and back, addition and subtraction.
- Ten frame: counting, number bonds, teen numbers.
- Analog clock: hour and half hour, time to 5 minutes, skip counting.
- Place value chart: place value, regrouping, reading numbers.
These are the same ideas children meet in the Mathumo journey, from counting in preschool to place value in second grade.
A tool is for exploring and a game is for practice. When your child has seen an idea on a tool, try a free math game for it. Our guide on math games at home has more ideas.
Questions about the math tools
What are virtual manipulatives?
Virtual manipulatives are on-screen versions of the objects teachers use in class, such as counters, ten frames, number lines and base ten blocks. Children move them with a tap to see how numbers work. They work best next to real objects, and they help when you do not have the real ones.
Are these math tools free?
Yes. All five tools are free to use in your browser, with no sign-up and no ads. Nothing your child does is saved or sent anywhere, so every visit starts with a clean tool.
What ages are the math tools for?
The tools suit ages 4 to 8, from preschool to second grade. Each tool page says which ages and which math topics it fits, so you can pick the one that matches what your child is learning now.
Do the tools work on a phone or tablet?
Yes. Each tool opens full screen with one tap, and works with a finger on a phone or tablet, with a mouse on a computer, and with a keyboard. Tap always works, and dragging is only an extra where it fits.
How are tools different from games?
A game has a goal and ends when the round is done. A tool has no goal, so your child sets the numbers and tries things out for as long as they like. Use a tool to explain an idea, and a game to practice it.