Use representations to round a decimal number with tenths to the nearest whole number | Maths

Starter quiz

Which descriptions represent this image?
- 3 ones and 2 tenths ✓
- 32 tenths ✓
- 3.2 ✓
- 30.2
Represent the following picture as a decimal number.
- '2.5' ✓
Tick the numbers that are multiples of 10.
- 23
- 30 ✓
- 70 ✓
- 84
- 100 ✓
Tick the missing numbers from the number line.
- 7.0
- 7.1 ✓
- 7.5 ✓
- 7.10
- 8 ✓
Order the numbers in ascending order.
- 1
  
  ⇔
  
  0.9
- 2
  
  ⇔
  
  1.2
- 3
  
  ⇔
  
  5.3
- 4
  
  ⇔
  
  5.8
- 5
  
  ⇔
  
  9.5
- 6
  
  ⇔
  
  10.3
Tick the numbers that round to 100 as the nearest multiple of 10.
- 90
- 98 ✓
- 107
- 102 ✓
- 95 ✓

Which of these are not multiples of one?
- 1
- 3.0
- 4.2 ✓
- 7.9 ✓
- 10
Look at the number line. Which two multiples of 1 is a between?
- 6 and 7
- 7 and 8 ✓
- 5 and 6
- 8 and 9
5 is the previous multiple of 1 and 6 is the next multiple of 1. Which letter on the number line could this statement refer to?
- a
- b
- c ✓
- d
7.1 is the number. Tick the pair of numbers that are the previous and next multiples of one.
- 7 and 8 ✓
- 6 and 8
- 8 and 9
- 7 and 7.2
What is 8.5 rounded to the nearest multiple of one?
- '9' ✓
What is 17.2 rounded to the nearest multiple of one?
- '17' ✓

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Pupils say the previous multiple of one as a whole before e.g. previous multiple of 3.4 as 2 or 2.4

Place the number on a number line and clarify the whole numbers it sits between.

Multiple - A multiple is the result of multiplying a number by an integer. For example 2 × 5 = 10 so 10 is a multiple of 2 and 5.
Next - Something that comes after something else.
Previous - Something that comes before something else.
Rounding - Rounding means making a number simpler but keeping its value close to what it was.