# Literacy Write a definition for each key word:

Literacy

Write a definition
for each key word:
Irrational, Rational
Denominator,
Factor

ResearchMake aMemory

Why are irrational
numbers called
surds?

Skill Practice
1. Simplify:a)
c)

e)

b)

f)

50
12 d)

72
8

2. Write in its simplest form:a)
c)
e)

5 + 20

b)

12 + d) 48

45 -

f)

20

6 3 12

5 20

128 8

3. Rationalise the Denominator
a)
c)
5 b)
4

3 7

45
4 75

6 7

7
2+ 5

poste/revision sheet
explaining how to
rationalise the
denominator.

Stretch!

A Sequence of numbers
is:-

2, 2, 2 2, 4, 4 2,8...
What are the next 3
terms?
Does this triangle have a
right angle

4 + 20
32 5

2+ 5

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