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Maths
Number
Counting in Ones
Counting to 20 (in ones)

Counting to 20 (in ones)

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Basics on the topic Counting to 20 (in ones)

Join Razzi and practise counting to 20!

Transcript Counting to 20 (in ones)

Razzi says get your thinking cap on because today we're going to practice Counting to Twenty by Ones. It's time to begin! Let's try counting forwards from number one to number twenty!

We'll start at one and keep counting one more until we get to the number twenty, ready? One, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, TWENTY! Let's try it faster this time! One, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, TWENTY! Did you also get to twenty each time? Let's count backwards now! Are you ready?

This time we'll start at TWENTY and count back by one each time until we get to the number one, let's go! Twenty, nineteen, eighteen, seventeen, sixteen, fifteen, fourteen, thirteen, twelve, eleven, ten, nine, eight, seven, six, five, four, three, two, ONE! Let's try it faster now! Twenty, nineteen, eighteen, seventeen, sixteen, fifteen, fourteen, thirteen, twelve, eleven, ten, nine, eight, seven, six, five, four, three, two, ONE! Did you also get to one each time? Razzi had so much fun practicing with you today! See you next time!

Counting to 20 (in ones) exercise

Would you like to apply the knowledge you’ve learnt? You can review and practice it with the tasks for the video Counting to 20 (in ones).

Which numbers are missing?

Hints

Count out loud from 1 to 10 to hear the numbers.

Use your fingers to help count from 1 to 10.

Solution

The missing numbers are 2, 3, 6, 8, and 9.
1, 2, 3, 4, 5, 6, 7, 8, 9, 10.
Can you complete the number line?

Hints

Count backwards out loud from 20 to 0 to find the missing numbers.

If you are stuck, try counting forwards to help.

Solution

The missing numbers were 18, 15, 14, 9, and 8.
20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1.
Which numbers are missing?

Hints

Start at 1, and count out loud until you get to 10.

Use your fingers or a drawing to help you count from 1 to 10.

Solution

The missing numbers are 2, 3, 5, and 9.
1, 2, 3, 4, 5, 6, 7, 8, 9, 10.
Can you complete the number line from 1 to 20?

Hints

Remember, start at one, and count out loud until you reach the missing number.

Count using your fingers, your voice or a sketch to help.

Solution

The missing numbers are 2, 4, 7, 10, 11, 13, 16, 19, and 20.
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20.
Count from 11 to 20.

Hints

Count on from 11, and keep going until you reach 20.

Remember, counting from 11-20 follows the same pattern as counting from 1-10.

Solution

The missing numbers are 14, 15, 16, and 20.
11, 12, 13, 14, 15, 16, 17, 18, 19, 20.
Counting backwards from 20 - 0.

Hints

Start at 20 and count backwards.

Try counting forwards to help.

Solution

The missing numbers are 20, 18, 17, 16, 14, 13, 12, 10, 9, 8, 6, 5, 4, 2, 1.
20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0.

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