Big Maths
concepts which support calculating in KS2
Big Maths concepts which support calculating in KS2
Learn Its
*Aim is for Instant recall
*This increases speed and fluency when calculating
Learn It: 3 x 6 = 18 Switcher: 6 x 3 = 18
Fact Family: 4 + 6 = 10 6 + 4 = 10
10 – 6 = 4 10 – 4 = 6
By end of Y2 - Addition/Subtraction Facts
By end of Y4 - Multiplication/Division Facts
Y5/6 - Conventional Maths Knowledge
Big Maths concepts which support calculating in KS2
Learn Its – FACT FAMILIES
3 x 7 = 21
Learn It: 3 x 6 = 18 Switcher: 6 x 3 = 18
Fact Family: 4 + 6 = 10 6 + 4 = 10
10 – 6 = 4 10 – 4 = 6 3
SWITCHER:
7 x 3 = 21
INVERSE:
SWITCHER:
21 ÷7 = 3
21 ÷ 3 = 7
Big Maths concepts which support calculating in KS2
Learn Its – FACT FAMILIES
Useful when finding missing numbers (leading to simple algebra):
Learn It: 3 x 6 = 18 Switcher: 6 x 3 = 18
Fact Family: 4 + 6 = 10 6 + 4 = 10
10 – 6 = 4 10 – 4 = 6 3
3 x ? = 21
? X 3 = 21
21 ÷ ? = 3
21 ÷ 3 = ?
(3y = 21)
Big Maths concepts which support calculating in KS2
Learn Its – BEAT THAT TEST
Learn It: 3 x 6 = 18 Switcher: 6 x 3 = 18
Fact Family: 4 + 6 = 10 6 + 4 = 10
10 – 6 = 4 10 – 4 = 6
Big Maths concepts which support calculating in KS2
Learn Its – BEAT THAT TEST
Learn It: 3 x 6 = 18 Switcher: 6 x 3 = 18
Fact Family: 4 + 6 = 10 6 + 4 = 10
10 – 6 = 4 10 – 4 = 6
Big Maths concepts which support calculating in KS2
It’s Nothing New
Learn It: 3 x 6 = 18 Switcher: 6 x 3 = 18
Fact Family: 4 + 6 = 10 6 + 4 = 10
10 – 6 = 4 10 – 4 = 6
“If I know this, then I also know this…”
Big Maths concepts which support calculating in KS2
It’s Nothing New – SMILE MULTIPLICATION
Learn It: 3 x 6 = 18 Switcher: 6 x 3 = 18
Fact Family: 4 + 6 = 10 6 + 4 = 10
10 – 6 = 4 10 – 4 = 6
Big Maths concepts which support calculating in KS2
It’s Nothing New – SMILE MULTIPLICATION
Useful when multiplying and dividing:
Learn It: 3 x 6 = 18 Switcher: 6 x 3 = 18
Fact Family: 4 + 6 = 10 6 + 4 = 10
Harry says “Without doing
10 – 6 = 4 10 – 4 = 6
a written
method I know 7350 ÷ 7 will not have
a remainder.”
Is he correct?
Convince me.
X
20
3
40
7
Big Maths concepts which support calculating in KS2
It’s Nothing New – COIN MULTIPLICATION
Learn It: 3 x 6 = 18 Switcher: 6 x 3 = 18
Fact Family: 4 + 6 = 10 6 + 4 = 10
10 – 6 = 4 10 – 4 = 6
Big Maths concepts which support calculating in KS2
It’s Nothing New – COIN MULTIPLICATION
Learn It: 3 x 6 = 18 Switcher: 6 x 3 = 18
Fact Family: 4 + 6 = 10 6 + 4 = 10
10 – 6 = 4 10 – 4 = 6
Big Maths concepts which support calculating in KS2
It’s Nothing New – SMILE MULTIPLICATION
Useful when finding multiples:
Learn It: 3 x 6 = 18 Switcher: 6 x 3 = 18
Fact Family: 4 + 6 = 10 6 + 4 = 10
27 x 843
10 – 6 = 4 10 – 4 = 6
843 ÷ 27