L.O.1

1

• L.O.1
• To be able to derive quickly division facts
  corresponding to tables up to 10x10

2
10 9 8 7 6 5 4 3 2 1 0










We are going to count on and back using different
multiples.
3

• L.O.2
• To be able to use informal pencil and paper
  
• methods to divide TU by U and HTU by U.

4

• PROBLEM!
• 78 children will be placed in teams of 6.
• How many teams will there be?
• Q. What calculation do we need to solve this
  problem?
• When you have decided how to do it work out the
  answer.

5

• We need to do the division sum 78 6.
• We can do this by chunking
• 78
• - 60 ( 10 x 6 )
• 18
• - 18 ( 3 x 6 )
• 0
• Q. How many 6s have been subtracted?
• 78 6 13

6

• Q. What would be the answer if there had been
  80 children?

7

• Using chunking.
• 80
• - 60 (10 x 6 )
• 20
• - 18 ( 3 x 6 )
• 2 13 r.2
• Using pencil and paper we write
• 80 6 13 remainder 2

8

• Try this one with a partner
• There are 85 sweets to be shared equally among
  7 children.
• How many sweets does each child have? How many
  are left?

9

• Using chunking
• 85
• -70 (10 x 7)
• 15
• - 14 ( 2 x 7)
• 1 12 r.1
• Using pencil and paper
• 85 7 12 r.1

10

• 175 7
• In pairs discuss how you could
  calculate an answer to this.

11

• Using chunking
• 175
• - 70 (10 x 7)
• 105
• - 70 (10 x 7)
• 35
• - 35 ( 5 x 7)
• 0
• Answer 25

12

• In pairs discuss how you could
  calculate an answer to this
• 148 6

13

• Using chunking
• 148
• - 60 ( 10 x 6)
• 88
• - 60 ( 10 x 6)
• 28
• - 24 ( 4 x 6)
• 4
• Answer 24 r.4

14

• Try these
• 134 5
• 157 6
• 119 5

15

• 134 5
• 134
• - 50 (10 x 5)
• 84
• - 50 (10 x 5)
• 34
• - 30 ( 6 x 5)
• 4
• Answer 26 r.4

16

• 157 6
• 157
• - 60 (10 x 6)
• 97
• - 60 (10 x 6)
• 37
• - 36 ( 6 x 6)
• 1
• Answer 26 r.1

17

• 119 5
• 119
• - 50 (10 x 5)
• 69
• - 50 (10 x 5)
• 19
• - 15 ( 3 x 5)
• 4
• Answer 23 r.4

18

• Q.
• What is
• a quick way
• to check
• whether
• the answer
• to
  a
  division
• is
  correct?

19

• To check whether the answer to a
• division is correct we can use the
• INVERSE
• operation.

20

• LOOK
• 57 3 19
• Q. Which two numbers should we
• multiply to check whether this
• is correct?

21

• 57 3 19
• To use the inverse operation
• we should multiply 19 by 3.
• 19 x 3 57

22

• LOOK
• 175 7 25
• The inverse operation shows us
• 25 x 7 175

23

• By the end of this lesson the children should
  be able to
• Use multiples of the divisor for TU U and
  HTU U calculations
• Check with the inverse operation.