Whole numbers Number pattern or Sequence  by   

6

NUMBER SEQUENCES is identifying and recognising number sequences involving addition.

 

What is a  sequence?

  • A  sequence  is  a   list  of  objects  like numbers  which changes  according to  a  given  pattern.

1

What do you think about this pattern?

 

NOTE

When there is an increase from one number to the next the pattern will be discovered ,if you add or multiply  something with the previous  number to get the next one.
 

For example in the number

What is value of the fifth number?
 
Answer
50
 
What did we do to get the next numbers?
We added 10 the previous number to get the next one
 

How do we work out sequences of numbers?

  • Look for a pattern between the  given  numbers
  • Decide whether to use +, -, *, or /
  • Use the pattern to solve the sequence
 
Write down the next two numbers in the series below
  • 2, 4, 8, 16, ___, __

 

Answer

The next two numbers are
      •2, 4, 8, 16, 32, 68
 
What did we do to get the fifth and the sixth numbers?

What did we do to get the fifth and the sixth numbers? We summed the number before by itself to get the next one

 

Alternatively

•We multiply the previous number by 2 to get the next number.
 
Here is a magic square
 
What did you notice?
 
The  sum  of  the numbers  across, down and diagonal is 15
 
Assignment
  • What is the next number in the series below
  • 20, 24, 33, 49___
  • 15, 25, 35, 45, __
  • 1, 4, 9, 16, ___
  • 110, 120, 130 ,140, ____
  • 25, 50, 75, 100, __
  • 3, 5, 7, 9,___
  • 2, 4, 8, 16, ___

 Answers

  • 20,24,33,49,74
  • 15,25,35,45,55
  • 1,4,9,16,25
  • 110,120,130,140,150
  • 25,50,75,100,125
  • 3,5,7,9,11
  • 2,4,8,16,32