Explain the relationship between multiples of three and six | Maths

Starter quiz

Which word or phrase describes multiples of numbers that are next to each other when skip counting?
- Greater
- Product
- Adjacent ✓
- Factors
Which number on this number line is not a multiple of 3?
- '22' ✓
Which multiples of 3 are adjacent to 27?
- 21 and 25
- 23 and 28
- 24 and 30 ✓
- 26 and 28
A multiple of 3 is missing from this list: 15, 18, 21, ______, 27, 30 How can we use the adjacent multiples in this example?
- 21 + 3 ✓
- 27 − 3 ✓
- Count along the number line up to the missing number
- Say the number that is one more than 21
Using your knowledge of groups, order the calculations starting with the smallest product.
- 1
  
  ⇔
  
  3 × 4
- 2
  
  ⇔
  
  5 × 3
- 3
  
  ⇔
  
  7 × 3
- 4
  
  ⇔
  
  3 × 9
- 5
  
  ⇔
  
  10 × 3
Izzy knows that 13 × 3 = 39 She used the known fact of 12 × 3 = 36 and _________ 3
- added ✓
- subtracted