Chapter 4.6 (Mathematics 5)

Number patterns involving multiplication

Number patterns involving multiplication

In groups:

  1. Arrange the cards to show numbers arranged from the smallest to the largest.
  • 12
  • 6
  • 24
  • 3
  1. Discuss the pattern formed by the numbers.

Example 6

What is the next number in the pattern?

The rule is multiply by 3.
​The next number is 270 × 3 = 810.

Exercise F

  1. Start with 2, rule “Multiply by 3”.
    2, , , 
  2. Start with 3, rule “Multiply by 5”.
    3, , , 

F2

Make patterns of five numbers using the given number and the rule.

  1. From 8, rule “Multiply by 2”.
  2. From 6, rule “Multiply by 4”.
  3. From 10, rule “Multiply by 5”.

F3

Make two patterns of four numbers. Use the rule “Multiply by 3”.

  1. 11, 22, 44, 88, 
  2. 15, 30, 60, , , 480
  3. 4, 8, 16, 32, , 
  4. 10, 20, 40, , , 320
  5. 7, 21, 63, , 567
  6. 8, 24, 72, 216, 
  7. 50, 100, , , 800