Year 9 Mathematics

Number 1

100

A fraction is used to refer to part of a quantity. What is the bottom number of a fraction called?

Denominator

200

What do you call a fraction turned upside down?

Reciprocal

300

Fill in the blank.

Decimals are numbers that have a point (.) in them. When adding or subtracting decimals, arrange the numbers so that the _________ line up.

Decimal points

400

Dividing 30 people into groups of six, how many members will there be in one group?

5 people

500

Converting 3 over 10 into percentage equals _______

30 percent

Number 2

100

After a survey, the teacher noticed that half of his students are not members of The Church of Jesus Christ of Latter Day Saints. What fraction is half?

1/2

200

State the acronym for memorizing the Order of Operations

BEDMAS

300

What place is 2 in the following number?

4.627

hundredths

400

Convert 0.714 to a fraction.

714/1000

500

What is 25% of $200?

$50

Algebra

100

What term in Mathematics means using letters in an expression instead of numbers?

Algebra

200

3x + 5x = ________

8x

300

2a x a = _________

2a²

400

Simplify the following expression.

12b
____
6b

2

500

Factorize the following expression:
100 - 25d

25 (4 - d)

Measurement

100

How many centimeters are there in 2 meters?

200 centimeters

200

The formula for calculating the area of a rectangle is _______.

Length (L) x Breadth (B)

300

If Paul left home at 7:00am for work, and returned at 3:30pm, how long has he been away from home for?

8 hours and 30 minutes

400

Calculate angle (b) Refer to picture on board.

25⁰

500

Calculate the Area of a Semi Circle with a diameter of 2cm

1.57cm²