1. Index notation
LO:-To understand and be able to use cubes of numbers, index notation and other integer powers

2. Squares and cubes
The square of a number is the number multiplied by itself.
E.G 3 x 3 = 9
The cube of a number is that number multiplied by itself and then by itself again
3cm
3 cm
3cm
3cm
3cm

3. Squares and cubes A squared number is written 3
A cubed number is written
Write in your books the squares of numbers 1-15
The cubes of numbers 1-5 and 10

4. Using index notation 5x5=5² 5x5x5=5³ 5x5x5x5= 5x5x5x5x5= 5x5x5x5x5x5=
We have written the product as a power of 5. The power is often called the index. We say that numbers are written using index notation

5. Your turn
Answer question page 25
Exercise 3.1
1,2,3 and 4

6. Using your calculator Work out these 15³ 6 to the power of 5
Find the power button on your calculator it may look like this Λ

7. Your turn Exercise 3.2 Question 1-8 a,c,e only Question 9
Question 12 and 14
Page 28 Challenge

8. Key ideas
The cube of a number is the number multiplied by itself and then by itself again.
Numbers can be written using index notation, for example 2³ means 2x2x2
You can use the power button on your calculator to work out any power of any number