Maths Skills Cleanup

Scientific Form

100

500 in scientific form

What is 5x10²? 

200

The speed of light is 300,000,000m/s. In scientific form, the speed of light.

What is 3x10⁸m/s?

300

1mm in meters and scientific form

What is 1x10^-3m?

400

If a marathon is 42.2km. The number of cm in a marathon. 

What is 4.22x10⁶ cm?

500

Given that a mole is a defined as about 6x10²³ molecules. A mole of water weighs about 18g, and a single drop of water weights 0.05g. The number of water molecules in a water droplet.

What is 1.667x10²¹ H2O molecules?

BEDMAS

100

17- -8

What is 25?

200

3 x -9

What is -27?

300

-9 x -7

What is 63?

400

(-14 + 6) x 8

What is -64?

500

(-35 ÷ -5 - 3) + 5 x -2

What is -6?

Decimal Arithmetic

100

0.3 + 1.42

What is 1.72?

200

0.2 x 16

What is 3.2?

300

0.4 x 1.7

What is 0.68?

400

0.3³

What is 0.027?

500

(0.64 - 0.17) x 0.7

0.329

Powers, Roots, Factorials

100

11²

What is 121?

200

√(144)

What is 12?

300

(3²)²

What is 81?

400

((2²)! - (2!)²)²

What is 400?

500

18! ÷ 16!

What is 306?

Algebra

100

2x = 11. The value of x

What is 5?

200

14x - 9 = 43. The value of x

What is 3?

300

A bat costs $5 more than a ball. Together a bat and ball cost $7.70. The cost of the ball.

What is $1.35

400

(6 - 3x) ÷ 6 = 3x + 6. The value of x

What is -2?