61 + 457800 – 5600 5735 + 36575735 + 3990 83 – 685002 – 4996 538 - 295267 + 267 2.5 + 2.75.1 -...

61 + 45 7800 – 5600

5735 + 3657 5735 + 3990

83 – 68 5002 – 4996

538 - 295 267 + 267

2.5 + 2.7 5.1 - 2.78

How do you add and subtract?

76 + 47 =

76

Addition

11676

+ 40

123

+ 7

86

+10

96

+10

106

+10

116

+10

123

+7

Addition

Moving on to…

67 + 56 = 60 + 50 = 110 7 + 6 = 11 121

358 + 473 =

Addition

358

+ 473

700120

11

831

358

+ 473

83111

Subtraction – KS1

Imran has 43 conkers; he gives 24 away to his friends. How many does he have left?

43 – 24 =

4333

-10

23

-10

20

-3-1

19

19 conkers

Subtraction

Sam has saved 93p, Amy has 55p. How much more money does Sam have than Amy?

93 – 55 =

55 60

+5

93

+3

90

+30

38p more

Subtraction

8.23 – 4.55 =

3.68

8.23

8.00

5.00

4.55

+0.23

+3+0.45

Subtraction

A sports stadium holds 9010 spectators. 5643 people attend a football match. How many empty seats are there?

5643 5700 9010

+ 57 +300 +3010

3367 empty seats

6000

3010

300

57

3367

57 x 2 78 ÷ 2

43 x 50 742 ÷ 2

36 x 25 700 ÷ 4

18 x 15 65.5 10

8 x 19 17 ÷ 5

34 x 7

How do you multiply and divide?

Multiplication

47 x 8 = x 40 78 320 56 376

37 x 46 =x 30 7

40 1200 280 14806 180 42 222

1702

……… leading to algebra

x a b

a a2 ab a

2 + ab

b ab b2

ab + b2

a2 + 2ab + b

2

(a + b)2 = (a + b) x (a + b)

(a + b)2 = a

2 + 2ab + b

2

3 x 3 = 94 x 5 = 20

5 x 15 = 75 7 x 5 = 35

Division

375 43 43 375

47 8 8 47

…or ‘chunking’

18 ÷ 3 = 6

We look carefully at the divisor and jump to the target number on a number line. Then count how many jumps.

+3 +3 +3 +3 +3 +3 ____

0 3 6 9 12 15 18

Moving on to…

78 ÷ 5 = 15 r 3

78

50 25 r3

5 x 10 5 x 5

How can you help?

Talk about how you do maths

Give praise and encouragement

Be positive

Ask your child to explain

Make sure maths is fun!

Use school

methods