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Trigonometry
Equations
Financial Maths
Area and Surface Area
Numbers of Any Magnitude
100

In a right-angled triangle, these are the names of the three sides. 

Hypotenuse, opposite and adjacent. 

100

Solve for x: x + 5 = 10 

x = 5 

100

Sarah earned $25 per hour. How much did she earn if she worked for 5 hours? 

Sarah earned $125. 

100

State the formula for area of a circle. 

The area of a circle is A = pi r2

100

Round 15.54323 to 3 decimal places. 

15.543

200

In a right-angled triangle, this handy acronym helps you remember how to find the ratios of the sides: Sine, Cosine, and Tangent. 

SOH CAH TOA 

200

Solve for x: 2x + 4 = 10. 

x = 3 

200

John's annual salary is $68 000. How much is his weekly pay to the nearest dollar? 

John's weekly pay is $1308. 

200

State the formula for the surface area of a sphere. 

The formula for surface area of a sphere is SA = 4 pi r2

200

Truncate 3.5643 to one decimal place. 

3.5 

300

Calculate the length of the hypotenuse if the shorter side lengths are 5cm and 12cm. 

The hypotenuse is 13cm. 

300

Solve for x: 4x + 1 = 2x + 7.  

x = 3

300

Samantha sold a $5000 lounge and earned a 7% commission. How much commission did she make? 

Samantha earned a $350 commission. 

300

The formula for the Surface Area of a Square Based Pyramid is pi r2 + pi rl. True or False. 

False 

300

Convert 14 000 to scientific notation. 

14 x 103

400

Calculate the unknown side length of a right-angled triangle if included angle (theta) is 30 degrees and the hypotenuse is 10cm. 

The opposite side is 5cm. 

400

Solve for x: 2(x+1) = 4

x = 1

400

Juliet invested $1000 for 10 years with an interest rate of 5%. How much simple interest did she earn? 

Juliet earned $500 interest. 

400

Calculate the surface area of a cone if the radius is 5cm and the slant height is 12cm. Use the formula SA = pi r2 + pi rl. 

The surface area of the cone is 267.0 cm2

400

True or false. 230 to one significant figure is 200. 

True 

500

Calculate the unknown angle of a right angled triangle if the opposite side is 3cm and the adjacent side is 4cm. 

The angle is 37 degrees. 

500

Solve for x: 5(3x-2) = 4(x+3). 

x = 2 
500

Sandra invested $5000 for 7 years at an interest rate of 4%. How much money did Sandra have at the end of the five years? 

Sandra had $6400 at the end of the 7 years. 

500

Calculate the slant height of a cone if the perpendicular height is 15cm and the radius is 4cm.

The slant height is 15.56cm. 

500

Convert 9.3 x 10-5 to a basic numeral

0.000093