The multiples of 100
Understand that the multiples of 100 (100–900) each represent a number of hundreds with 0 tens and 0 ones
What a learner can do afterwards
- Identify that 300 means 3 hundreds, 0 tens, 0 ones
- Place multiples of 100 on a number line to 1000
- Read and write multiples of 100 and explain their place-value structure
1 · Read
You already know that a hundred is ten tens. Now let's count by hundreds. Numbers like 100, 200, 300, and so on are called multiples of 100. Each one is some number of hundreds, with 0 tens and 0 ones left over.
Mia packs marbles into bags of 100. She fills 4 bags and has none left outside. She has 400 marbles: 4 hundreds, 0 tens, 0 ones.
Look at the last two digits of the number. A multiple of 100 always ends in two zeros, and those zeros are your clue: 0 tens, 0 ones.
A multiple of 100 is some number of hundreds with 0 tens and 0 ones, and it always ends in two zeros.
More to read
Multiples of a number
Multiples of 100 march in steady steps: 100, 200, 300, all the way to 1000. Each step adds exactly 1 hundred and nothing else.
Every multiple of 100 has 0 tens and 0 ones. The number 300 is 3 hundreds, 0 tens and 0 ones.
Whole number place value review
Place value shows the structure inside each multiple of 100. In 500 the 5 means 5 hundreds while tens and ones rest at 0.
This pattern makes the numbers easy to read and write. Say the hundreds count, then say hundred: seven hundred is 700.
Whole numbers in expanded form review
Expanded form of a multiple of 100 is short. The number 700 is just 700 + 0 + 0. There is only one nonzero part.
On a number line to 1000 the multiples of 100 sit at even gaps. Hopping from mark to mark always adds the same 100.
Explore more
2 · Watch
به انگلیسیTake it off screen
Where it sits
Learn first
This opens up
Where this leads
Jobs that lean on this skill. Follow one to see everything it is built on.
18 questions wait behind this lesson, each with its answer explained. Every answer feeds the sky: stars light as they are learned, and dim when it is time to come back.