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Maths Quiz - Level 3-4 Numbers - Decimals - Ordering (Questions)

Let's chat about comparing and ordering numbers - it's super handy when you want to put them in a neat list from smallest to biggest. Understanding a number's value helps you compare and order them, but some people find decimal numbers a little trickier to order. If that's you, then don't worry - this KS3 Maths quiz is here to make ordering decimals a breeze for you. Soon you'll find it as easy as ordering whole numbers!

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Decimals are like the cool sidekicks for numbers less than 1. When ordering decimals, start with the whole numbers, then check out the tenths, hundredths, and thousandths. Here's a twist: unlike regular numbers, after the decimal point, values go down! So, 0.099 is less than 0.1 - 1 tenth is bigger than 0 tenths, 9 hundredths, and 9 thousandths.

Ready for the challenge? Play this quiz to practice ordering decimals. It might seem easy, but stay sharp! Read each question carefully and check out the answers before picking the right one. Let's avoid those sneaky mistakes!

1. Which of these is the smallest number?
[ ] 2.5
[ ] 2.15
[ ] 2.17
[ ] 2.8
2. Which of these is ordered from largest to smallest?
[ ] 3.45, 3.5, 3.15, 3.55
[ ] 3.5, 3.55, 3.45, 3.15
[ ] 3.15, 3.45, 3.5, 3.55
[ ] 3.55, 3.5, 3.45, 3.15
3. A rollercoaster at the amusement park has a sign that says you must be over 1.1 metres to ride it. Which of these heights is unable to ride?
[ ] 1.12 metres
[ ] 1.07 metres
[ ] 1.2 metres
[ ] 1.31 metres
4. A tree stands 5.47 metres tall. How tall would a giraffe need to be to see over the tree?
[ ] 5.04 metres
[ ] 5.047 metres
[ ] 5.74 metres
[ ] 5.417 metres
5. Which of the following numbers is the second largest?
[ ] 3.4
[ ] 3.14
[ ] 3.41
[ ] 3.1
6. What comes next: 1.2, 1.25, 1.3, 1.35?
[ ] 1.04
[ ] 1.39
[ ] 1.4
[ ] 1.45
7. Which of these is the smallest number?
[ ] 47.8
[ ] 48.7
[ ] 40.7
[ ] 4.078
8. Which of these is the largest number?
[ ] 96.7
[ ] 9.67
[ ] 97.6
[ ] 9.76
9. My television cable is 4.3m, my mobile phone charger is 3.2m, my PlayStation lead is 4.13m and my hi-fi lead is 2.78m. Which is the longest?
[ ] Television cable
[ ] Mobile phone charger
[ ] PlayStation lead
[ ] Hi-fi lead
10. Colin gets £2.40 pocket money, Michelle gets £2.15, Geoff gets £2.75 and Sarah gets £2.55. Who gets the most?
[ ] Colin
[ ] Michelle
[ ] Geoff
[ ] Sarah

You can find more about this topic by visiting BBC Bitesize - Place value and ordering decimals

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Maths Quiz - Level 3-4 Numbers - Decimals - Ordering (Answers)
1. Which of these is the smallest number?
[ ] 2.5
[x] 2.15
[ ] 2.17
[ ] 2.8
It helps to give the numbers the same number of decimal places by adding zeros, e.g. 2.50 and 2.80
2. Which of these is ordered from largest to smallest?
[ ] 3.45, 3.5, 3.15, 3.55
[ ] 3.5, 3.55, 3.45, 3.15
[ ] 3.15, 3.45, 3.5, 3.55
[x] 3.55, 3.5, 3.45, 3.15
Look for the highest number in the tenths column
3. A rollercoaster at the amusement park has a sign that says you must be over 1.1 metres to ride it. Which of these heights is unable to ride?
[ ] 1.12 metres
[x] 1.07 metres
[ ] 1.2 metres
[ ] 1.31 metres
1.07 is less than 1.10
4. A tree stands 5.47 metres tall. How tall would a giraffe need to be to see over the tree?
[ ] 5.04 metres
[ ] 5.047 metres
[x] 5.74 metres
[ ] 5.417 metres
Any number above 5.47 could be right so the only possible answer given is 5.74
5. Which of the following numbers is the second largest?
[x] 3.4
[ ] 3.14
[ ] 3.41
[ ] 3.1
The order from smallest to largest is 3.1, 3.14, 3.4 and 3.41
6. What comes next: 1.2, 1.25, 1.3, 1.35?
[ ] 1.04
[ ] 1.39
[x] 1.4
[ ] 1.45
The sequence is increasing by 0.05 each time
7. Which of these is the smallest number?
[ ] 47.8
[ ] 48.7
[ ] 40.7
[x] 4.078
First compare the whole numbers!
8. Which of these is the largest number?
[ ] 96.7
[ ] 9.67
[x] 97.6
[ ] 9.76
Look at the numbers before the decimal point first
9. My television cable is 4.3m, my mobile phone charger is 3.2m, my PlayStation lead is 4.13m and my hi-fi lead is 2.78m. Which is the longest?
[x] Television cable
[ ] Mobile phone charger
[ ] PlayStation lead
[ ] Hi-fi lead
4.3 is the largest number on the list
10. Colin gets £2.40 pocket money, Michelle gets £2.15, Geoff gets £2.75 and Sarah gets £2.55. Who gets the most?
[ ] Colin
[ ] Michelle
[x] Geoff
[ ] Sarah
One penny is a hundredth of a pound so would be written as £0.01