Hundred Chart | Instructions: | Suggested Lessons or Activities: | Special Features: | Other Related Modules and Useful Links:

Hundred Chart

© R. Mirshahi


  • Click to highlight the numbers on the hundred chart and hear the numbers. You may highlight the numbers red, blue or half red & half blue. You can also drag the number tiles to where they belong on the chart. You may hide the numbers on the chart by clicking the "eye" button. There are 3 different Hundred Charts for you to choose from.

Suggested Lessons or Activities:

  • Study multiples of 3, 4, 6, etc. For example you can start at 3 and skip count by 3 and all the numbers you highlight red will be multiples of 3. Then you can start at 4 and skip count by 4 to find multiples of 4 and highlight these numbers blue (click twice). Common multiples like 12 should be highlighted half red and half blue (3 clicks).
  • Drag the number tiles and find where they belong on the number chart. If misplaced these numbers will go back. Each time you start or refresh the program the number tiles are randomly placed in the box for you to pick from.
  • Put some number tiles on the chart and click the "eye" to hide the the chart. Ask the students to put the rest of the number tiles on the blank chart.
  • Click the "eye" to hide the chart. Students cover the blank chart one tile at time, but before they drag any tile, they have to highlight the square to mark the position.
  • Adding and subtracting using the 100 chart:
25 + 10 = (start with 25 and go down 1 square)
67 - 10 = (start with 67 and go up 1 square)
23 + 1 = (start with 23 and go to the right 1 square)
66 + 20= (start with 66 and go down 2 squares)
99 - 10 + 1= (start with 99 and go up 1 square and to the right 1 square)
24+ 20 - 1 = (start with 24 and go down 2 squares and to the left 1 square )
The above activities consolidate students' understanding of patterns that you will find on a 100 chart. You can hide the numbers on the chart while you do these activities and highlight the path as you add and subtract. Also you can make more complex patterns such as the one below:
+1+10 pattern.png
The rule for this pattern involves two steps (+1, +10). For most students it is much easier to understand the visual pattern on the chart and guess what numbers come next .

Using 100 Chart to add:

Using 100 Chart to subtract:

100 Chart as a board game:

Reach for 100: Print the 100 chart on a large sheet of paper. Create dice with 0, 1, 2, 5, 10, etc. on them. Students use a coloured cubes as player pieces. They take turn to roll the cube. You have to roll a 10 to start the game. If you land on a number where another player is, you kick that player out of the game and they have to start again. The person who reaches 100 wins the game. This game helps students understand the use of 100 chart for addition and for creating number patterns. You can adapt this game to suit the needs of your students. For example, your dice could have subtract values also (-1, -10) and students could roll 2 dice with more interesting outcomes (lose a turn, free turn, etc.).

4 in a Row Bingo: Hand out large 100 charts. Call out numbers and students will cover those numbers with cubes. When a student sees 4 cubes in a row, they call BINGO and read out the numbers! This game is great for students to understand how the numbers are arranged on the 100 chart and recognize the patterns.

Here a student has hidden the numbers and is trying to put the number tiles where they belong on the 100 chart.

Special Features:

  • Highlight colours allowing to show common multiples
  • random placement of number tiles
  • show/hide the numbers on the chart for added challenge
  • hear the numbers on all three charts
  • full screen
  • number tiles are rejected if misplaced
  • When you click a number tile, it will come to the front (highest level or depth above all other tiles). This way, your tile will never hide behind another tile.

Other Related Modules and Useful Links: