Three- and four-digit numbers · Usually met around P2
Hundreds and thousands
10 hundreds make a thousand; an empty place gets a 0.
How to do it
Method
10 hundreds make a thousand; an empty place gets a 0
3 thousands, 4 tens and 5 ones = 3045
Another way
Place-value chart
Th 3 | H 0 | T 4 | O 5 → 3045
In full
10 ones make 1 ten, 10 tens make 1 hundred, and 10 hundreds make 1 thousand. From the right, the places are ones, tens, hundreds and thousands: 3045 is 3 thousands, 0 hundreds, 4 tens and 5 ones, that is 3000 + 40 + 5. Read a number from its biggest place. When writing one, a place with nothing in it still needs a 0 to hold it: three thousand and five is written 3005. Or use a place-value chart: put each digit in its column, then read the columns in turn.
Worked examples
Have a go first, then open each one for the answer and the working.
Example 1
200 is made of □ hundreds, □ tens and □ ones.
Fill in each box
Show the answer and working
Answer: 2，0，0
From the right: 0 in the ones, 0 in the tens, 2 in the hundreds.
Example 2
How do you say 7026?
- A. seven thousand, two hundred and sixty
- B. seven hundred and twenty-six
- C. seven thousand and twenty
- D. seven thousand and twenty-six
Choose the right answer
Show the answer and working
Answer: D. seven thousand and twenty-six
7 thousands, an empty hundreds place, then the tens and ones: seven thousand and twenty-six.
Example 3
33 tens make □, and 21 hundreds make □.
Fill in each box
Show the answer and working
Answer: 330，2100
Every 10 tens make a hundred: 33 tens are 330. Every 10 hundreds make a thousand: 21 hundreds are 2100.
Practise it in the game →Three- and four-digit numbers · Free to start, unlimited questions, no download