In 14, the 1 means one ten. The 4 means four ones.
Step 1: Let's Learn
Read it, or press Listen and follow the words.
Writing 41 would be a different number. The order matters.
Position carries meaning
In 15 the 1 does not mean one. It means one ten. Where a digit sits tells you what it is worth.
Why tens go first
We write the biggest part first, the way we say hundreds before tens. Keeping that order is what makes numbers comparable at a glance.
Step 2: Try It Yourself
Tap and try it out.
Tens
1
Ones
5
1 ten and 5 ones is 15. Say it as "ten five".
Step 3: Watch an Example
One step at a time.
Watch Leo Write It Down
Leo has one ten and 3 ones.
- Step 1
He writes the tens digit first: 1.
Step 4: Your Turn
Practice makes it stick.
Writing It Down
Problem 1 of 1
One ten and 9 ones. What number do you write?
Which Number?
Tens first, then ones.
1 of 3
One ten and 1 one is which number?
2 of 3
One ten and 0 ones is which number?
3 of 3
Two tens and 0 ones is which number?
Step 5: Quick Check
Show what you know.
Question 1 of 2
In 16, how many ones are there?
Question 2 of 2
One ten and 2 ones is which number?
What You Learned
- The first digit is the tens.
- The second digit is the ones.
- 13 and 31 are different numbers.