WEEK 5 TERM 3 MATHS FOR CIRCLES

TEACHING MULTIPLICATION AND DIVISION, BOOK 6, PAGES 9 & 10

TWOS, FIVES, AND TENS

WALT: I am learning to work out multiplication facts from what I know about twos, fives and tens. SUCCESS CRITERIA: I am learning to work out multiplication facts from what I know about twos, fives and tens.

TO DO THIS ACTIVITY, YOU HAVE TO BE QUICK AT REPEATED ADDITION AND ADDING TENS TOGETHER.

ACTIVITY 1

PROBLEM	ANSWER	PROBLEM	ANSWER
1. 5 + 5 =	10	6.  11 + 11 =	22
2. 9 + 9 =	1	7. 12 + 12 =	24
3. 7 + 7 =	14	8.  6 + 6 =	12
4. 10 + 10 =	20	9.  4 + 4 =	8
5. 4 + 4 =	8	10. 15 + 15 =	30

ACTIVITY 2 - USING MATERIALS

* 9 + 9 Gives the same answer as 2 x 9

* 3 x 5 gives the same answer as 5 x 3

* 4 x 10 gives the same answer as 8 x 5 =( doubling and halving)

You may use the Slovanic abacus or bead frame to solve these problems.

PROBLEM	ANSWER	PROBLEM	ANSWER
1. 2 X 8 =	8 X 2 = 16	6. 6 X 2 =	2 X 6 = 12
2. 3 X 2 =	2 X 3 = 6	7. 8 X 10 =	10 X 8 = 80
3. 4 X 10 =	10 X 4 = 40	8. 7 X 10 =	7 X 10 = 70
4. 8 X 5 =	5 X 8 = 40	9. 6 X 5 =	6 X 5 = 30
5. 7 X 2 =	2 X 7 = 14	10. 3 X 10	10 X 3 = 30

ACTIVITY 3 - USING IMAGING

PROBLEM	ANSWER	PROBLEM	ANSWER
1.  3 X 5 =	5 X 3 = 15	6. 2 X 7 =	2 X 7 = 14
2. 6 X 5 =	5  X 6 = 30	7.  2 X 2 =	2 X 2 = 4
3. 2 X 5 =	2 X 5 = 10	8. 2 X 4 =	2 X 4 = 8
4. 4 X 5 =	4 X 5 = 20	9. 2 X 7 =	7 X 2 = 14
5. 2 X 6 =	2 X 6 = 12	10. 10 X 8 =	8 X 10 = 80

ACTIVITY 4 - USING NUMBER PROPERTY

1.Five teams are playing Soccer. There are 11 players in each team. How many players are playing Soccer?

54

2. There are 15 biscuits in a packet and there are 10 packets. How many biscuits are there altogether?

150

3. There are 10 pencils in a packet and there are 8 packets of pencil. How many pencils are there altogether?

80

4. There are 8 teams playing in a Seven - a - side Rugby tournament. How many players are playing altogether?

56

5. Sam had 12 packets of lollies. There were 5 lollies in each packet. How many lollies were there altogether?

60