What is a Number Chart? Definition, Types, Chart, Examples, FAQs

What Is a Number Chart in Math?

A number chart as a list of numbers that are written in a particular numerical order. 

For example, if natural or counting numbers from 1 to 10 are listed in the form of a grid, it forms a number chart 1 to 10. Similarly, a number grid 1 to 100 would contain all the numbers from 1 to 100.

A number chart is a graphical representation of numbers arranged in a specific order. It helps in visualizing number patterns, sequences, and relationships. Number charts are valuable tools for teaching counting, number recognition, and basic mathematical concepts. They are often used by teachers to aid in early number learning.

A number chart does not necessarily have to be a list of natural numbers or whole numbers. It can be a list of even numbers, odd numbers, and so on.

Types of Number Charts

There are different types of number charts that help kids in identifying the number patterns. Following are the different types of number charts:

Even Numbers Chart

“Even numbers” are numbers divisible by 2. 

Examples: 2, 4, 6, 8, etc.

Here’s a number chart representing even numbers from 1 to 20:

Odd Numbers Chart

The numbers that are not divisible by 2 are called “odd numbers.” 

Examples: 1, 3, 5, 7, and so on.

Here’s a number chart representing off numbers from 1 to 20:

Prime Numbers Chart

Prime numbers have only two factors, 1 and the number itself. 

Example: 2, 3, 5, 7, 11, and so on.

(0 and 1 are not prime numbers.)

Here’s a number chart representing prime numbers between 1 to 20:

Composite Numbers Chart

Composite numbers are simply the numbers that are not prime. Composite numbers have more than two factors.

Example: 4, 6, 8, 9, 10, and so on.

(0 and 1 are not composite numbers.)

Natural Numbers Chart

Natural numbers are used for counting or ordering. Natural numbers start from 1. They do not include 0.

The chart that represents these numbers is known as the natural numbers chart. 

How to Make a Number Chart

We can create a number chart by using a few simple steps. 

• Decide the Range and Pattern: Determine the range of numbers you want to include in your chart. For instance, you might choose to create a chart for numbers 1 to 100 or a chart of multiples of 6 between 1-100.
• Prepare a Grid: Draw a grid on a piece of paper or use a digital tool. Divide the grid into rows and columns based on your chosen range. Label the rows and columns with appropriate headings.
• Fill in the Numbers: Begin filling in the numbers in numerical order, starting from the first row and moving across the columns. For example, the first row might contain numbers 1 to 10, the second row 11 to 20, and so on.
• Maintain Order: Ensure that you place the numbers in the correct order, following the sequence as you move across the rows and columns.
• Add Visuals (Optional): To make the chart more engaging, you can use colors, shapes, or illustrations. These can help highlight patterns or make the chart visually appealing, especially for young learners.
• Label the Chart: Add a title to your number chart that indicates the range of numbers it represents. This helps viewers understand the purpose of the chart.

Number Chart in Words

We can also write the numbers in words to make it easy to understand how to read the numerical.

The given chart shows the numbers from 1 to 20, along with the number words.

Number Chart Patterns

We observe different patterns in number charts such as even numbers, odd numbers, counting by 3’s, counting by 10’s and so on. 

• Counting by 2 Chart

Let’s understand how to count by 2. If you start from 0 and take equal jumps of 2, you will land on even numbers 2, 4, 6, 8, and so on. 

0 + 2 = 2; 2 + 2 = 4; 4 + 2 = 6; 6 + 2 = 8; and so on

Thus, skip counting by 2 gives us the list of even numbers.

1	11	21	31	41
2	12	22	32	42
3	13	23	33	43
4	14	24	34	44
5	15	25	35	45
6	16	26	36	46
7	17	27	37	47
8	18	28	38	48
9	19	29	39	49
10	20	30	40	50

• Counting by 3 Chart

Here’s a number chart representing the skip counting by 3’s pattern.

• Counting by 8 Chart:

Here’s a number chart that shows the skip counting by 8’s pattern: 

Facts about Number Charts

Conclusion

In this article, we explored the concept of number charts, which serve as valuable tools for teaching counting, number sequencing, and basic math skills to kids. Number charts offer a visual way to understand number patterns and relationships. We learned patterns in number charts along with different types of number charts. To reinforce our understanding, let’s engage in solving examples and practicing MCQs.

Solved Examples on Number Charts

1. Find the pattern for the number chart given below.

Solution: 

The numbers marked in the number chart are:

9, 18, 27, 36, 45, 54, 63, 72, 81, 90 and 99. 

It shows skip counting by 9’s.

2. Draw a number chart representing the skip counting by 4’s pattern.

Solution: 

To represent skip counting by 4’s, we highlight the following numbers:

 4, 8, 12, 16, 20, 24, 28, 32, 36, 40 and so on. 

3. Write the missing numbers and label the given number chart.

110	120	130
160	170	180
	220		240
				300

Solution: 

The ones digit of all the numbers are 0.

Also, the difference between any two consecutive numbers is 10.

Thus, the chart shows the skip counting by 10’s pattern. 

After filling missing numbers, we get:

10	20	30	40	50
60	70	80	90	100
110	120	130	140	150
160	170	180	190	200
210	220	230	240	250
260	270	280	290	300

Practice Problems on Number Charts

Frequently Asked Questions about Number Charts