Grade 2 · Maths · Lessons
Read it, write it, stretch it out
5️⃣digits🔤words🧱parts💯hundreds
One number, three ways.The big ideaDigits, words and parts: three ways to write one number.
How it works
A number can be written with digits, with words, or stretched into parts.
Say 413 as four hundred thirteen. Stretch it as 400 + 10 + 3.
Each part is a place: hundreds, tens, ones.
Example 1: Stretch it out
- 691 = ? + ? + ?
- Say what each digit is worth.
- Write the parts as an addition.
- So the answer is 600, 90, 1.
Example 2: Put the parts together
- ? = 400 + 10 + 3
- Add the hundreds, tens and ones.
- Write the number as digits.
- So the answer is 413.
Example 3: Words to digits
- eight hundred seven: ?
- Listen for the hundreds first, then the tens and ones.
- Write a zero for a place you didn't hear.
- So the answer is 807.
Words to know
- digits
- The symbols 0 to 9 used to write numbers.
- expanded form
- A number written as the sum of its place values.
Watch out
- Write a zero for an empty place: eight hundred seven is 807.
- Tens and ones for thirteen are 1 ten and 3 ones.
- Don't mix up the order of parts.
Try it
- Write 'three hundred forty-two' in digits.
- Stretch 508 into parts.
- Write 600 + 20 + 1 as one number.
- How do you write 'seven hundred six' in digits?
Answers: 1. 342 · 2. 500 + 0 + 8 (or 500 + 8) · 3. 621 · 4. 706
For grown-upsShow your child a house number or a price and ask them to say it in words and stretch it into parts.