8 Math Term 1 Revision

+/- Numbers

100

-5-3

-8

200

-6 + -7

-13

300

3 + -2

1

400

-3 - -9

6

500

5 - -4

9

600

-6 - -10

4

+/- Fractions

100

1/14 + 1/14

2/14 or 1/7

200

7/12 - 3/12

4/12 or 1/3

300

5/12 + 1/3

9/12 or 3/4

400

3/5 - 2/15

7/15

500

2/3 + 1/5

10/15 + 3/15

13/15

600

3/4 - 1/5

15/20 - 4/20

11/20

x / Fractions

100

1/3 xx 1/4

1/12

200

2/3 xx 4/5

8/15

300

3/2 xx 4/5

12/10 or 1 1/5

400

2/3 -: 4/5

2/3 * 5/4

10/12 or 5/6

500

3/4 -: 4/9

3/4 * 9/4

27/16 or 1 11/16

600

5/12 -: 3/4 + 1/6

5/12 * 4/3 + 1/6

20/36 + 6/36

26/36 or 13/18

+/- Decimals

100

12.3 - 9.2

3.1

200

4.53 + 1.78

6.31

300

65.33 - 5.1

60.23

400

124 - 32.5

91.5

500

912 + 4.61

916.61

600

412 - 7.23 + 2.1

406.87

x / Decimals

100

4 xx 2.3

9.2

200

5.7 xx 2.3

13.11

300

0.48 xx 2.34

1.1232

400

2.6 -: 5

0.52

500

64 -: 0.8

80

600

1.4 + 3.5 -: 0.7 

1.4 +5 

6.4

% of a Number

100

10% of 520

52

200

25% of 420

105

300

5% of 620

31

400

20% of 125

25

500

50% of 137

68.5

600

5% of 146

7.3

Markups and Markdowns

100

$250 with a 50% markup

$250 + $125 

$375

200

$45 with a 20% markdown

$45 -$9

$36

300

$32 with a 10% markup

$32 + $3.20

$35.20

400

$520 with a 5% markdown

$520-$26

$494

500

$38.40 with a 10% markup

$38.40 + $3.84

$42.24

600

$51.20 with a 5% markdown

$51.20 - $2.56 

$48.64

Profit and Loss

100

Cost price $43 Selling Price $59

Was there a profit or loss? How much?

Profit $16

200

Cost price $91 Selling Price $74

Was there a profit or loss? How much?

Loss $17

300

Cost price $39.12 Selling Price $54.35

Was there a profit or loss? How much?

Profit $15.23

400

Cost price $91.72 Loss $5.43

What is the selling price?

$86.29

500

Selling Price $46.32 Profit $28

What is the cost price?

$18.32

600

Cost price $24.15 Loss $8.21

What is the selling price?

$15.94

GST

100

Find the missing information

Selling Price - $ 810

GST - $ 

Price incl GST - $

GST - $ 81

Price incl GST - $ 891

200

Find the missing information

Selling Price - $62.50

GST - $

Price incl GST - $

GST - $6.25

Price incl GST - $68.75

300

Find the missing information

Selling Price - $73.21

GST - 

Price incl GST - $

GST - $7.32

Price incl GST - $80.53

400

Find the missing information

Selling Price - $

GST - $

Price incl GST - $495

Selling Price - $450

GST - $45

500

Find the missing information

Selling Price - $

GST - $

Price incl GST - $49.83

Selling Price - $45.30

GST - $4.53

600

Find the missing information

Selling Price - $

GST - $

Price incl GST - $70.543

Selling Price - $64.13

GST - $6.41