Compare and order decimal numbers with tenths | Maths

Starter quiz

Which description of the number does not match the picture?
- 0.9
- nine tenths
- nine tens ✓
Match the symbols to their meaning.
- <
  
  ⇔
  
  less than ✓
- =
  
  ⇔
  
  equal to ✓
- >
  
  ⇔
  
  greater than ✓
Look at the number line. Tick the missing numbers.
- 5.4
- 4.5 ✓
- 5 ✓
- 0.5
What number is the arrow pointing to? Give your answer as a decimal number.
- '0.9' ✓
Write the following number as a decimal number.
- '4.3' ✓
The image shows four mixed numbers labelled A to D. Match the decimal numbers to the mixed numbers.
- 1.7
  
  ⇔
  
  A ✓
- 7.1
  
  ⇔
  
  B ✓
- 2.3
  
  ⇔
  
  C ✓
- 3.2
  
  ⇔
  
  D ✓

Write down the symbol that shows greater than.
- '>' ✓
Which symbol shows less than?
- < ✓
- =
- >
Select the three numbers that would make the statement correct.
- 5 ✓
- 3.5
- 4.3 ✓
- 2.4
- 40.1 ✓
Order the numbers in ascending order.
- 1
  
  ⇔
  
  3.6
- 2
  
  ⇔
  
  5.4
- 3
  
  ⇔
  
  5.7
- 4
  
  ⇔
  
  7.5
- 5
  
  ⇔
  
  7.7
Order these numbers is descending order.
- 1
  
  ⇔
  
  354.2
- 2
  
  ⇔
  
  345.2
- 3
  
  ⇔
  
  325.4
- 4
  
  ⇔
  
  324.5
Select the three numbers that could make this statement correct. 3.2 < __________ < 4.2
- 3.2
- 3.6 ✓
- 4.3
- 4 ✓
- 4.1 ✓

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To compare two numbers, you compare digits with the same place value, starting with the largest place-value digit.
If the whole numbers are the same, look at the value of the tenths digit to compare and order.

Pupils think that because a representation has more images/items then it is a larger number.

Encourage pupils to consider the value of each image/item and say this verbally as ___ wholes and ___ tenths.

Compare - When you compare, you look for similarities and differences in an object or value.
Order - You can order numbers by putting them in a place based on a set rule.
Place value - The value of a digit in a number based on where it is placed is known as place value.
Ascending - Ascending order is when items are arranged from smallest to largest.
Descending - Descending order is when items are arranged from largest to smallest.