Calculator Workout

Click on a skill from the list below:

Skill 1: Basic Operations e.g. Calculate the value of   $9+4-7$

Skill 2: Using Brackets e.g. Calculate the value of $5(9-4)$

Skill 3: Percentage of a quantity e.g. What is 24% of 1800?

Skill 4: One quantity as a percentage of another e.g. What is 45 as a percentage of 150?

Skill 5: Squares and square roots e.g. Calculate the value of   $\sqrt{5^2 + 12^2}$

Skill 6: Indices e.g. $(3^3 + 2^4)^2$

Skill 7: Cube roots e.g. Find the value of $\sqrt[3]{27}$

Skill 8: Standard Form e.g. Express $236731$ in standard form correct to 3 significant figures.

Skill 9: Areas of circles e.g. [Give all answers correct to three significant figures]

Find the area of a circle with a radius of 9cm.

Skill 10: Fraction calculations e.g. Find the value of   $3\frac13 + 2\frac25$

Skill 11: Trigonometry e.g. Evaluate   $21 \sin34°$ (See note ¹).

Skill 12: Degrees (or Hours), Minutes and Seconds e.g. Convert the angle 16°35'40" to its decimal equivalent.

Skill 13: Using Variables e.g. If A = 1.62, B = 9.87 and C = 5.62 evaluate $AB + BC - AC$.

Skill 14: Combinations e.g. How many different groups of 3 can be selected from 8?

Skill 15: Permutations e.g. In how many different ways could 1st, 2nd and 3rd place prizes can be awarded to 3 of 8 competitors?

Skill 16: Iteration e.g. If $x_{n+1}=x_n+6$ and $x_1=25$ find $x_5$

1. To make your calculator work in degrees (rather than radians or gradians) press the key a number of times until you see:

Press the number key 1 to select degrees.

Reset

To initialise the calculation mode and setup, and clear replay memory and variables press .

To clear the variables press .

1. To make your calculator work in degrees (rather than radians or gradians) press SHIFT then MODE(SETUP).

Press the number key 3 to select degrees.

Reset

To initialise the calculation mode and setup, and clear replay memory and variables press .

To clear the variables press .

1. To make your calculator work in degrees (rather than radians or gradians) press SHIFT then MENU(SETUP).

Press the number key 2 to select Angle Unit then 1 for degrees.

Reset

To initialise the calculation mode and setup, and clear replay memory and variables press .

To clear the variables press .