Foundation Learning Four Rules

Asynchronous Lesson - Four Rules

​Due Monday 27.09.21

• ​Addition

• ​Subtraction

• ​Multiplication

• ​Division

​Word of the Week

​Word of the Week

​Addition using column methods

​Remember to start with the units!

​Spot the mistake

​9 + 6 = 15

​the 5 underneath and carry 1 is correct.

​5 + 7 + 1 = 13

​They have forgotten to add on the carry 1

2 + ​9 + 5 = 16

​the 6 underneath and carry 1 is correct.

​8 + 9 + 7 + 1 = 25

​​The 5 underneath is correct.

​They have forgotten to carry 2 and not 1

Subtraction using column methods

​Remember to start with the units!

​

​If the top digit is smaller than the lower digit you need to "borrow" ten from next door.

​Spot the mistake

​8 - 9 ! cannot be done!

​​They need to borrow from the 9!

​6 89 ¹8

​1 4 9

​5 4 9

0 - 7 ! cannot be done

​There is 0 to borrow from next door!

​​They have correctly borrowed from the 6.

​They have forgotten that only next door can borrow!

5 9 ​

​6 ¹0 ¹0

​1 0 7

​4 9 3

​/

​/

​/

​Multiplication - column method

​You need to choose the multiplication method that suits you. Most people are taught this method.

​Watch the video and decide if this is the method for you.

​Multiplication - Grid Method

​You need to choose the multiplication method that suits you. Some people may have seen this method

​Watch the video and decide if this is the method for you.

​Multiplication - Chinese Lattice

​You need to choose the multiplication method that suits you. Some people may have seen this method

​Watch the video and decide if this is the method for you.

​Here are three questions for you to test your chosen method.

​Try to do these on paper first before checking your answers on the next slide

​Column Method:

​

​1 2

​1 6

​7₁ 2

​1 2 0

​1 9 2

​Grid Method:

​

​10

​10

​

​6

​100

​

​60

​1 2 0

​ 7 2

​1 9 2

​Lattice Method:

​

​

​1

​1

​

​6

​ 0

​

​No, he does not have enough cupcakes!

​20

​12

​0

​0

​ 2

​ 2

​1

​2

​1

​6

​2

​1

​9

​2

​Question 2: Product means multiply

​62 x 51 = 3162

​

​Question 3: 18 x 53

​​18 x 53 = 954

​​Division - Bus stop method

​Watch the video to revise this skill

​Here are three questions for you to test your division.

​Try to do these on paper first before checking your answers on the next slide

​1 ¹6 ⁴2

​6

​0 2 7

​27 toys were sold.

​7 ¹2

​3

​2 4

​Each person pays £24

​0 2

​Remember that there are many different ways to solve a problem.

​Division is our focus, so I have used division to answer this question.

​1 ¹1 ³2

​4

​0 2 8

​a) No, the teacher cannot fit all 30 text books on the shelf

​

​b) The teacher can fit 28 books on the shelf.

Congratulations!

Quizziz Completed!

​Now you need to attempt the questions on the worksheet.

​These must be completed and handed in next week.

BY HAND, ON PAPER, SHOWING ALL YOUR WORKING OUT.