Year 8 Percentages_1

CONVERSIONS BETWEEN %’s, DECIMALS AND FRACTIONS

50

CONVERT THE DECIMAL 0.45 TO A PERCENTAGE.

45%

100

CONVERT  3/5  TO A PERCENTAGE

60%

150

CONVERT 24% TO A FRACTION IN SIMPLEST FORM

6/25

200

WRITE THE FRACTION  2/9  AS A PERCENTAGE (TO 1 DECIMAL PLACE)

22.2%

250

CONVERT 13.85% TO A DECIMAL

0.1385

% OF A QUANTITY

50

FIND 10% OF $80

$8

100

CALCULATE 25% OF 6Okg

15kg

150

CALCULATE 15% OF ($432 + $108)

81

200

WHAT PERCENTAGE IS $76 OF $90 (1 dec place)

84.4%

250

WHAT PERCENTAGE IS 45 MINUTES OF 2 HOURS

37.5%

INCREASE & DECREASE BY A %

50

INCREASE $50 BY 10%

$55

100

DECREASE $120 BY 20%

$96

150

A 120kg BAG OF RICE IS INCREASED BY 45%.  FIND THE NEW WEIGHT.

174kg

200

THE PRICE OF A $4.50 CHOCOLATE BAR IS DECREASED BY 14%. FIND THE NEW PRICE.

$3.87

250

A 20m ROPE IS INCREASED BY 15% AND THEN DECREASED BY 15%. WHAT IS THE LENGTH NOW?

19.55 metres

PROFIT/LOSS & MONEY

50

IF AN ITEM COSTS $22 AND YOU MAKE A $10 PROFIT, WHAT IS THE SELLING PRICE?

$32

100

A SHIRT COSTS $48 AND IT’S SOLD FOR $33. PROFIT OR LOSS? AND HOW MUCH?

LOSS OF $15

150

FIND THE % PROFIT IF A $20 ITEM IS SOLD FOR $30.

50%

200

A COMPUTER BOUGHT FOR $600 IS SOLD FOR $450. FIND THE % LOSS

25%

250

A $50 ITEM IS REDUCED BY $20. THEN AN EXTRA 10% IS TAKEN OFF THE NEW REDUCED PRICE. WHAT IS THE FINAL PRICE?

$27

UNITARY METHOD

50

IF 50% IS $10. HOW MUCH IS 100%?

$20

100

IF 20% IS 100g, FIND 100%.

500g

150

IF 5% IS EQUAL TO 12cm, HOW MUCH IS 100%.

240cm

200

IF 9% OF A QUANTITY IS 36kg, WHAT QUANTITY IS EQUAL TO 100% 

400kg

250

IF 8% OF A QUANTITY IS 56cm, WHAT QUANITY REPRESENTS 100%. GIVE YOUR ANSWER IN METRES.

700cm = 7 metres