Term 4 Maths Exam Revision

Simple Interest

100

Simple interest formula?

I = Pin/100

200

Total amount formula?

A = P + I

300

What is the interest made on a $500 investment at 5.6% over 2 years?

$56

400

A car costs $5600. How much would the interest on a loan cost at 9.9% over 4 years?

$2217.60

500

What is the total amount on an investment of $25000 at 2.45% after 3 years?

$26837.50

Formulas

100

Simple interest

I = Pin/100

200

Fraction to a decimal?

Top number / bottom number

300

Decimal to %?

x 100

400

(a^m)ⁿ = 

a^{m x n}

500

a⁰ =

1

Card Probability

100

Pr (red) in percent

50%

200

Pr (diamonds) in decimal

0.25

300

Pr (Jack) in percent

7.69%

400

Pr (even number) as a fraction in simplest form

20 / 52 = 5 / 13

500

Pr (picture card) in percent

30.76%

Scientific Notation

100

Write as decimal form: 1.45 x 10⁶

1450000

200

Write 4.5 x 10^-4 decimal form

0.00045

300

Write 0.0000567 in scientific notation

5.67 x 10^-5

400

Write 123456789 in scientific notation form

1.23456789 x 10⁸

500

1.23 x 10⁵ x 2.54 x 10⁴ = 

Write in simplest scientific notation form 

3.1242 x 10⁹

Index Laws

100

y⁵ x y¹⁰ = 

y¹⁵

200

10⁰ = 

1

300

4³ x 4¹³ = 

4¹⁶

400

Simplify 4h³ x 2h⁷

8h¹⁰

500

25g¹⁰k⁵  /  5g²k³  =

5g⁸k²