Counting to 120

Quick answer

Counting past 100 follows the same pattern as counting from 1: the last digit runs from 0 to 9, then the next ten starts. So 100, 101, 102 go on to 109, then 110, and on to 119, then 120. Counting can start at any number, going up or back. A big group of objects is counted fastest in tens: ten, twenty, thirty, and so on, then the ones left over.

What you'll learn

Count to 120 starting at any number
Read and write the numbers from 100 to 120
Count a group of objects by tens and ones and write the number

Count past 100

You can count to $100$ . The numbers keep going after that.

98,\ 99,\ 100,\ 101,\ 102,\ 103

Read $101$ as one hundred one. Read $110$ as one hundred ten. At the end, $120$ is one hundred twenty.

Here are the numbers from $101$ to $120$ , ten in each row:

\begin{array}{cccccccccc} 101 & 102 & 103 & 104 & 105 & 106 & 107 & 108 & 109 & 110 \\ 111 & 112 & 113 & 114 & 115 & 116 & 117 & 118 & 119 & 120 \end{array}

Why the pattern repeats

Look at the last digit as you count: $1$ , $2$ , $3$ , up to $9$ , then $0$ . Then it starts over.

Each time the last digit comes back to $0$ , a new ten starts. $19$ goes to $20$ . $99$ goes to $100$ . And $109$ goes to $110$ .

Past $100$ , you count the same way you did from $1$ to $20$ . You only put “one hundred” in front.

Start anywhere

You do not have to start at $1$ . Start at any number and count on.

From $57$ : $58$ , $59$ , $60$ , $61$ , $62$ .

You can count back, too. From $114$ : $113$ , $112$ , $111$ , $110$ , $109$ .

Count big groups by tens

Here are some blocks. Each tall block is a ten. Each small block is a one.

Eleven tens and four ones

Count the tens: $10$ , $20$ , $30$ , $40$ , $50$ , $60$ , $70$ , $80$ , $90$ , $100$ , $110$ . Then count on the ones: $111$ , $112$ , $113$ , $114$ .

There are $114$ blocks.

Count on from $95$ . Say the next five numbers.

Answer

$96$ , $97$ , $98$ , $99$ , $100$

Full solution

Say one number at a time after $95$ . The fifth one is $100$ .
What number comes after $108$ ?

Answer

$109$

Full solution

$108$ , then $109$ . The last digit goes from $8$ to $9$ .
What number comes after $109$ ?

Answer

$110$

Full solution

The last digit is $9$ , so a new ten starts. $109$ goes to $110$ .
Write “one hundred sixteen” as a number.

Answer

$116$

Full solution

“One hundred” is the $1$ in front, and “sixteen” is $16$ . Together: $116$ .
Count back from $103$ . Say the next four numbers.

Answer

$102$ , $101$ , $100$ , $99$

Full solution

Each number is one less. After $100$ comes $99$ when you count back.
How many blocks are there?

How many blocks?

Answer

$107$

Full solution

Count the tens: $10$ , $20$ , up to $100$ . Then count on $7$ ones: $101$ to $107$ .
Fill in the missing number: $117$ , $118$ , $\underline{\quad}$ , $120$

Answer

$119$

Full solution

Each number is one more than the one before. After $118$ comes $119$ .
Read this number out loud: $105$ .

Answer

One hundred five

Full solution

The $1$ in front says “one hundred.” The $05$ says “five.”
Count on from $76$ . Say the next four numbers.

Answer

$77$ , $78$ , $79$ , $80$

Full solution

After $79$ , the last digit comes back to $0$ and a new ten starts: $80$ .
Nora writes “one hundred ten” as $10010$ . What went wrong?

Hint

How many digits does a number from $100$ to $120$ have?

Answer

She wrote $100$ and $10$ side by side. The number is $110$ .

Full solution

Numbers from $100$ to $120$ have three digits. “One hundred ten” is the $1$ for one hundred, then $10$ .

So it is $110$ .

Frequently asked questions

What comes after 100?

101, 102, 103 and so on up to 109. Then 110, 111, and on up to 120.

How do I write one hundred seven?

107: a 1, a 0 and a 7. It is not 1007.

What comes after 109?

110. The ones start again at 0 and the tens go up by one, the same as 19 goes to 20.

How do I count from a number other than 1?

Say the number, then keep going: from 57, say 58, 59, 60, 61.

What is the fastest way to count a big pile?

Make groups of ten. Count the groups by tens, 10, 20, 30, then count on the ones left over.

What to learn next

Standards alignment

This lesson covers the following Common Core State Standards for Mathematics.

CCSS.MATH.CONTENT.1.NBT.A.1Number and Operations in Base TenCount to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.

For teachersPrint problems onlyTick to print a blank worksheet; leave it clear to print the lesson with the full answer key.

Counting to 120

Quick answer

What you'll learn

Count past 100

Why the pattern repeats

Start anywhere

Count big groups by tens

Worked examples

Common mistakes

Practice problems

Frequently asked questions

What comes after 100?

How do I write one hundred seven?

What comes after 109?

How do I count from a number other than 1?

What is the fastest way to count a big pile?

What to learn next

Standards alignment

Quick answer

What you'll learn

Count past 100

Why the pattern repeats

Start anywhere

Count big groups by tens

Worked examples

Common mistakes

Practice problems

Frequently asked questions

What comes after 100?

How do I write one hundred seven?

What comes after 109?

How do I count from a number other than 1?

What is the fastest way to count a big pile?

What to learn next

Standards alignment

More Early Math lessons