Earning Money
Income
Investing Money
Indices
Rounding
100

I earn $60 per hour. How much Do i get if I work 5 hours?

60 x 5

ANSWER = $300

100

I earn $120 000 gross income. How much is my taxable income if I claim $10 000 of taxable deductions?

120,000 - 10,000

ANSWER = $110 000

100

Increase $500 by 10%.

500 x 10% = 50

500 + 50 

ANSWER = $550

100

Simpify:   a3 x a2 

a5

100

Round 23.34567 to 1 decimal place. 

23.3

200

I earn $50 per hour. How much do I get paid if I work 6 hours at double time?

50 x 2 x 6

ANSWER = $600

200

Using the tax Table, find the tax payable on $20 000.

0.19 x (20,000 - 18,200)

ANSWER = $342

200

I invest $500 at 10% p.a. for 3 years. Calculate the simple interest earned. 

I = Prn

I = 500 x 10% x 3

I = $150

200

3w^4yxx5wy^2

15w5y3

200

Round 2345 to 1 significant figure.

2000

300

I am paid $30 per hour. How much will I get if I work 10 hours of overtime, paid at a rate of "time and a half" ?

30 x 1.5 x 10

ANSWER = $450

300

Using the Tax Table, find the tax payable on $100,000.

20,797 + 0.37 x (100,000 - 90,000)

ANSWER = $24,497

300

I invest $2000 at 10% p.a. compounded annually. How much is my investment worth after 5 years?

A = 2000 (1 + 10%)5

A = $3221.02

300

Write with a positive index:

(3f^-3)/(4g^-2) 

(3g^2)/(4f^3)

300

Round 0.0004567 to 2 significant figures.

0.00046

400

I get paid $400 per week. What is this per month?

400 x 52 / 12

ANSWER = $1733.33

400

Ted earns $200,000. He claims $50,000 in taxable deductions. Using the tax table, find his tax payable.

200,000 - 50,000 = 150, 000

20,797 + 0.37 x (150,000 - 90,000)

ANSWER = $42 997

400

How long do I need to invest $6000 for at 10% p.a. if I want to double my money?

I = Prn

6000 = 6000 x 10% x n

6000 = 600 x n

ANSWER = 10 years

400

Simplify the following:

(5a^4x xx4a^2x^5)/(2a^8x^3)

(10x^3)/(a^2)

400

Round 1.9987 to 2 significant figures.

2.0

500

I work 10 normal hours and then 6 hours at "time and a half". If I earn $380, calculate my hourly pay.

10 + 6 x 1.5 = 19 normal hours

380 / 19

ANSWER = $20 per hour

500

Bill earns $200,000. During the financial year he pays a total of $80,000 in PAYG tax. Does he get a Tax Refund or have a Tax Liability? And by how much?

Tax Payable = $63, 497.

Tax Paid = $80, 000.

He gets a Tax Refund of $16, 503.

500

I invest $5000 at 12% p.a. for 6 years, compounding monthly. How much is the investment worth at the end?

A = P (1 + r) n

A = 5000 (1 + 12%/12)6x12

ANSWER = $10,235.50

500

Simplify:

((3a^4)^2xx4a^-2)/(20a^3)

(9a^3)/5

500

Write 309,476,656 to 3 significant figures AND in scientific notation.

3.09 x 108