Describe and represent tenths as a decimal number | Maths

Starter quiz

10 ones are equal to __________
- 10 tens
- 1 ten ✓
- 1 one
10 tenths are equal to __________
- 10 tens
- 1 ten
- 1 one ✓
What is the value of the 1 in the place value chart?
- 'one hundred' ✓
One thousand is __________ the size of one hundred.
- ten times ✓
- one hundred times
- one thousand times
Match the letter to the correct value.
- A
  
  ⇔
  
  7 tenths ✓
- B
  
  ⇔
  
  2 tenths ✓
- C
  
  ⇔
  
  9 tenths ✓
Which picture represents seven tenths? Write the letter.
- 'A' ✓

The decimal point separates __________.
- the ones from the tens
- the whole numbers from the fractional parts. ✓
- the fractional parts from the decimal numbers.
If I make 1, one tenth the size, it becomes __________.
- one ten
- one tenth ✓
- one hundred
One is __________ times the size of one tenth.
- ten ✓
- hundred
- one-tenth
Write five tenths as a decimal number.
- '0.5' ✓
Which image does not show 3 tenths?
- A
- B
- C ✓
- D
Match each letter to its correct value.
- A
  
  ⇔
  
  0.7 ✓
- B
  
  ⇔
  
  0.9 ✓
- C
  
  ⇔
  
  0.2 ✓
- D
  
  ⇔
  
  1 ✓

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If a digit is moved one place value column to the right it becomes one tenth the size.
One tenth is one tenth the size of one whole.
Tenths are recorded in the column to the right of the decimal point so one tenth is 0.1
The decimal point separates whole numbers from numbers with a decimal fraction part.

Pupils put a digit in the ones column instead of the tenths column to represent a number of tenths.

Continue to ask what each digit that has been recorded represents, linking back to the place value chart and the role of the decimal point.

One tenth the size - When a whole is divided into ten equal parts, we can say one of those parts is one tenth the size of the whole.
Tenths column - The tenths column places the number of tenths a given number has.
Decimal point - A decimal point is a small dot used in a number to separate the whole number from the fractional part.