Grade 7 Maths: Percentages poster

A one-page CAPS Grade 7 Maths poster on percentages (Fractions and decimals), with the key ideas, key words and a tip to remember.

CAPS Grade 7MathsFractions and decimalsFree

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Maths · Grade 7 · Fractions and decimals

Percentages

1Per cent means out of 100

A percentage is a fraction with a denominator of 100.

Example

37 out of 100 = 37100 = 37%

Example

720 = 35100 = 35%
0,48 = 48%

Find 10% by dividing by 10. Then build up to the percentage you need.

Example

10% of 520 = 52
5% of 520 = 26
15% of 520 = 52 + 26 = 78

Write it as a fraction. Then change to a denominator of 100.

Example

14 out of 35 = 1435 = 25
25 = 40100 = 40%

Find the percentage of the amount. Add it for an increase. Subtract it for a decrease.

Example

Increase R240 by 5%:
5% of 240 = 12, so R240 + R12 = R252
Decrease R90 by 10%:
10% of 90 = 9, so R90 − R9 = R81

Change everything to the same form, such as percentages, before you compare.

Example

0,4 and 310 and 35%
40%, 30%, 35%
Smallest to biggest: 310, 35%, 0,4

Remarkable · remarkablereports.com

Learners can practise this topic for free with a short quiz and flashcards, with no sign-up. Open the Percentages revision.