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Place value: hundreds, tens and ones
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How to play Place Value
- Look at the blocks and the number they make. Each block shape stands for hundreds, tens or ones.
- Move the sliders to change the diagram and watch what happens. The readout under the picture shows the numbers.
- Answer each question. If you are wrong you get a hint and can try again, with no penalty.
- Some steps ask you to make something happen, such as hitting a target value. Experiment until it works.
- Finish the lesson to earn XP and see how many questions you got right first time.
Tips and strategy
- Say each number in words as you build it: “three hundred and five”.
- Do not rush. The sliders are there to be played with, so try extreme values as well as sensible ones.
- Say what you notice out loud or write it down before you press Continue.
- Use the hint when you are stuck, and then try to explain the answer in your own words.
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FAQ
Place Value: questions
What is place value?
Place value means a digit's value depends on its position in the number. The 5 in 52 is worth 50, but the 5 in 25 is worth 5.
Why is zero important in place value?
A zero holds a place so the digits to its left keep their value. Without it, 305 would look like 35.
What grade learns place value?
Tens and ones are taught in Grade 1 (age 6 to 7), and hundreds in Grade 2 and 3. This lesson suits ages 6 to 9.
How can I practise at home?
Use coins or small objects grouped in tens, then try the free printable place value worksheets and online practice.
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