Pre-Algebra - Summer Brain Knockout

Vocabulary

100

Name the vocabulary word with the given definition.

The answer to an addition problem.

Sum

200

Name the vocabulary word with the given definition.

A symbol used to represent one or more numbers.

Variable

300

Name the vocabulary word with the given definition.

The number above the bar in a fraction that tells the number of parts in relationship to the number of parts to the whole.

Numerator

400

Name the vocabulary word with the given definition.

The middle number of an ordered set of data.

Median

500

Name the vocabulary word with the given definition.

A number multiplying a variable or product of variables.

Coefficient

Fractions, Decimals and Percents (oh my!)

100

What is 0.45 as a percent?

45%

200

What is 78% as a decimal?

0.78

300

What is this fraction as a decimal?

4/5

0.8

400

What is 37% as a fraction?

37/100

500

What is 135% as a decimal?

1.35

Fractions

100

2/3 +5/3

7/3  or  2 1/3

200

4/5 - 2/10

3/5

300

2/7 * 2/5

4/35

400

4/5-:8/15

3/2 or 1 1/2

500

(6/9)/(2/5)

15/9 or 5/3 or 1 2/3

Equations

100

Solve.

x+7=11

x=4

200

Solve.

3x=18

x=6

300

Solve.

x/5=4

x=20

400

Solve.

2x+1=13

x=6

500

Solve.

3x+4=-8

x=-4

Order of Operations

100

Simplify.

3+4*5

23

200

Simplify.

(4+7)*3

33

300

Simplify.

18-:3*3

18

400

Simplify.

((9-5)-:2)^2

4

500

Simplify.

((5+4)-:3)/(10-7)

1