Maths · Lower Key Stage 2 Year 3
Year 3 Number and Place Value
Count in fours, eights, fifties and hundreds, say what each digit in a three digit number is worth, then compare, order, adjust and place numbers up to 1000.
About this topic
This course extends place value from tens and ones into hundreds, which is the idea the rest of Year 3 Maths rests on. It opens with counting in fours, eights, fifties and hundreds, along with the patterns that let a learner check their own count. The hundreds column arrives next, where a three digit number is taken apart and each digit given its value. Writing numbers in words follows, including numbers where a zero holds a column open. Then come ten and one hundred more or less, taken as far as the point where a column runs out and ten tens have to swap for a hundred. Comparing and ordering follow from that, then placing a number on a line, first from zero to one thousand and then on a line with different ends. The last lesson introduces nothing new. It solves a two step problem about pencils using only the columns. Every lesson opens with a short recap of what the earlier lessons established, names the mistake children usually make at that point, and shows the wrong version beside the right one. Every lesson ends with a quiz of eight questions, and the course finishes with a final test and one written assignment.
What you will learn
- Count in multiples of four and eight from zero.
- Count in multiples of fifty and one hundred.
- Use a number pattern to check a step count.
- State the value of each digit in a three digit number.
- Partition a three digit number into hundreds, tens and ones.
- Read numbers to 1000 written as numerals.
- Write numbers to 1000 in words.
- Write a number where a zero holds a column open.
- Read a number written in words back as digits.
- Find ten more or ten less than a given number.
- Find one hundred more or one hundred less than a given number.
- Work out ten more when the tens digit is already nine.
- Compare two numbers to 1000 using the words greater and less.
- Order a set of four numbers to 1000.
- Work out the halfway point of a number line from its two ends.
- Place a three digit number on a number line.
- Solve a two step problem using place value.
Vocabulary
Words to know
You will meet these words in this topic. Press the speaker to hear one. Inside a lesson you can tap any word to hear it and see what it means.
Words this topic teaches
- step
One part of doing a problem.
- odd
A number that does not divide into two equal parts.
- pattern
A group of things that repeats in the same way.
- column
A vertical space where digits stand in a number.
- value
How much a digit counts in a number.
- worth
How much money you can get for it.
- digit
One number from 0 to 9 in a larger number.
- partition
To break a number into smaller parts.
- overflow
There is more than can go in.
- swap
Swap means to change places with another.
- line
A row of words across the page.
- total
The whole number you get after adding.
Other words in these lessons
- common
Shared by more than one thing.
- exactly
No more and no less, spot on.
- part
A single piece of a bigger thing.
- version
A form or type of something.
- order
Put numbers from smallest to biggest or the other way.
- handle
To be able to deal with something.
- reorder
To change the order of things.
- difference
What makes two things not alike.
- separate
Each one on its own.
- straight
Going down with no turns.
- contain
Has something or holds something.
- routine
A set of steps you follow every time.
- direction
Which way you move or look.
- mistake
Doing something the wrong way.
- point
Show a place using your finger or pen.
- pair
Two things that are matched together.
- describe
Say what something is like.
- underline
Put a line below a word to show it.
- decide
Choose one thing after thinking about it.
- alone
No one else is there.
- across
Go from the left side to the right.
- runs
Shows the order things come.
- place
It is the spot of a digit.
- spot
See or notice something quickly.
- exact
Perfect, no mistake.
- closer
More near to something.
- instead
Do one thing, not the other.
- past
Time before now; something that already happened
- arrive
It means something comes or is here.
- establish
Make something sure or clear.
- depend
To need something else to be true.
- ignore
Do not use or think about it.
- mark
Draw a small line or point.
Lessons
- 1How Do We Count in Fours, Eights, Fifties and Hundreds?Free to try
- 2What Is Each Digit Worth in a Three-Digit Number? Locked
- 3How Do We Read and Write Numbers to 1000? Locked
- 4How Do We Find 10 or 100 More or Less? Locked
- 5How Do We Compare and Order Numbers to 1000? Locked
- 6How Do We Place Three-Digit Numbers on a Number Line? Locked
- 7How Do We Solve Problems Using Place Value? Locked