Counting to 100
Counting to 100 means saying numbers in the right order, one at a time, all the way from 1 to 100.
Reading is good — doing is better. Practice Counting to 100 as an interactive lesson.
Practice freeDefinition
Counting to 100 is the skill of saying or writing numbers in order starting at 1 and going all the way to 100 without skipping any numbers or saying them out of order. Each number is exactly one more than the one before it.
Remember the rule
Each next number is always ONE MORE than the number before it. When you reach 9 in any group, the next number starts a new ten (like 19 goes to 20, 29 goes to 30).
Key words
- number
- A word or symbol that tells how many of something there are, like 1, 5, or 42.
- count
- To say numbers in order to find out how many things there are.
- sequence
- Numbers that follow each other in a special order, like 1, 2, 3, 4, 5.
- ones
- The single numbers 1 through 9 before you get to ten.
- tens
- Groups of ten: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100.
- skip
- When you accidentally leave out a number while counting, like saying 14, 15, 17 and missing 16.
- hundred
- The number 100, which is ten groups of ten all put together.
- next number
- The number that comes right after the one you just said, always one more.
Worked examples
What comes after 9?
→ 10 · After every group of nine ones, you move to the next ten.
Count out loud from 1 to 10.
→ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 · These are the building blocks — if you know these, you can count all the way to 100.
What comes after 19?
→ 20 · The tricky teen numbers end at 19, then you jump to 20.
Count from 48 to 52.
→ 48, 49, 50, 51, 52 · This practices crossing over from the 40s to the 50s, a common stumbling spot.
What number comes after 99?
→ 100 · 100 is the last number in our goal — it is ten tens put together!
Fill in the missing number: 63, 64, ___, 66.
→ 65 · Find the number that is one more than 64 and one less than 66.
Common mistakes
- Saying the teen numbers out of order, for example saying 14, 15, 60 instead of 14, 15, 16.
- Forgetting to switch to the next ten, like saying 29, 29, 29 instead of moving to 30.
- Mixing up the tricky teens, especially saying 'eleventeen' or skipping from 19 straight to 21.
- Counting too fast and accidentally skipping numbers in the middle, like jumping from 55 to 57.
- Stopping before 100 because the child thinks a number like 99 is the end.
FAQs
Why do we count to 100 in kindergarten?
Counting to 100 builds the foundation for all of math. It helps kids understand that numbers go in a special order and that each number means one more thing.
What is the best way to help my child practice counting to 100?
Try counting together every day in short bursts. Count steps on a walk, count to 100 by 1s on a hundreds chart, or do the fun '100 days of school' countdown. Little and often works best.
My child keeps getting stuck at the same number. What should I do?
Practice the tricky spot over and over in a sing-song voice. For example, if they always miss 39-40, chant '38, 39, 40!' several times a day until it feels natural.
Should my child count objects or just say the numbers out loud?
Both! Counting objects (like blocks or crackers) is called one-to-one correspondence and is very important. Saying numbers out loud in order is called rote counting. Kids need to practice both.
Is it okay if my child counts slowly?
Yes! Accuracy comes before speed. It is much better to count slowly and correctly than to rush and skip numbers. Speed will come naturally with practice.
What is a hundreds chart and how does it help?
A hundreds chart is a 10-by-10 grid with the numbers 1 to 100 written in it. Kids can see, touch, and follow the numbers with their finger, which makes the order of numbers easy to see and remember.
Want the whole picture for your child?
Every K–6 subject, an AI tutor that teaches step by step, unlimited practice, and a reward world.
Start a 3-day free trial