61 + 457800 – 5600 5735 + 36575735 + 3990 83 – 685002 – 4996 538 - 295267 + 267 2.5 + 2.75.1 - 2.78 How do you add and subtract?

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Presentation transcript:

– – – How do you add and subtract?

= 76 Addition

Addition Moving on to… = = =

= Addition

Subtraction – KS1 Imran has 43 conkers; he gives 24 away to his friends. How many does he have left? 43 – 24 = conkers

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

Subtraction 8.23 – 4.55 =

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

57 x 278 ÷ 2 43 x ÷ 2 36 x ÷ 4 18 x  10 8 x 1917 ÷ 5 34 x 7 How do you multiply and divide?

Multiplication 47 x 8 = x x 46 = x

……… leading to algebra xab aa 2 aba 2 + ab babb 2 ab + b 2 a 2 + 2ab + b 2 (a + b) 2 = (a + b) x (a + b) (a + b) 2 = a 2 + 2ab + b 2

3 x 3 = 9 4 x 5 = 20 5 x 15 = 757 x 5 = 35

Division 375  

…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 ____

Moving on to… 78 ÷ 5 = 15 r 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