Worksheet 26 Memorandum: Revision Term 1 Grade 9 Mathematics

Worksheet 26 Memorandum: Revision Term 1

Grade 9 Mathematics

1. Complete the table by ticking the correct columns for each number

Number

R

R'

Q

Q'

Z

N

No

0

0.56

8

-3

4.8

2. a) 804 2 402 2 201 3 67 67 1

c) 378 2

189 3

63 3

21 3

7

7

1

b) 312 2 156 2 78 2 39 3 13 13 1

d) 846 2 423 3 141 3 47 47 1

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3. a)

( ( ))

b)

( )

c) e) ( ) ( ) h)

d)

()

( )

f)

( ( ))

( )

g)

( )

()

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i)

() ()

j)

4. Common Fraction

5.

a)

( ) ()

Decimal Fraction 0.7 0.74 0.31 1.5

0.929 0.136 0.285714... 0.25 0.98

Percentage 70% 74% 31% 150% 92.9% 13.6%

28.57% 25% 98%

81.82%

b)

() ()

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c)

( )

(

)

e)

( )( ) ( )( )

d) ( )

(

)

( )

( ) ( )( )

6. a) 0.00096 c) 0.0000067 e) 0.00004588

b) 32 760 000

d) 3 699 100

f)

51 272

7. a) 1, 4, 9, 16....

b) 2, 8, 18, 32...

i)

25, 36, 49

i)

50, 72, 98

ii) the position of the term squared ii) the position of the term squared

and then doubled.

iii) 100

iii) 200

iv)

iv)

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c) 7

11 15 19...

d) 1

2

4

8...

i)

23, 27, 31

i)

16, 32, 64

ii) add 4 to the previous term

ii) double the previous term

iii) 4(10) +3 = 43

iii) 128, 256, 512

iv)

iv)

e) 8

15 22 29

i)

36, 43, 50

ii) add 7 to the previous term

iii) 7(10) +1 = 71

iv)

8. a)

-4

-2

-1

0

1

2

7

10

m

23

13

8

3

-2

-7

-32

-47 -5m+3

b)

-4

-2

-1

0

1

2

6

14

m

-23

-15

-11

-7

-3

1

17

49 4m ? 7

c)

-3

-2

-1

0

1

3

5

10

m

1

3

27

243 59 049

d)

-6

-2

-1

0

1

4

8

15

m

-56

-20

-11

-2

7

34

70

133 9m ? 2

e)

-9

-2

-1

0

1

5

12

18

m

-27

1

5

9

13

29

57

81 4m + 9

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