7th Mathletes 04/08

Arithmetic

100

34 + 16 - 21

29

200

5² + 3²

34

300

3(2 - 3)

-3

400

24 ÷ 6(2²)

16

500

16 - [54 ÷ (3)(3)]

-38

Simplify Expressions

100

5q + 5q

10q

200

10x + 5

10x + 5

300

p - 0.76p

0.24p

400

9.99m + 4m - 13.99

13.99m - 13.99

500

x(a+b) + c

ax + bx + c

One Step Inequalities

100

x + 1 > 1

x > 0

200

14 > 8x

x < 1.75

300

x - 10 ≥ 90

x ≥ 100

400

- j ≥ 4

j ≤ -4

500

(-10/11)p > 100

p < 110

Two Step Inequalities

100

2x + 24 ≥ 24

x ≥ 10

200

-4y - 16 ≤ 4

y ≥ -5

300

6x - 8x + 10 ≥ 50

x ≤ -20

400

1 < 4x - 6

x > 7/4

500

z/6 + 16 < -4

b < -120

Math Trivia

100

A stop sign is an example of what kind of polygon?

Octagon

200

What do you call the value that occurs the most in a data set?

The mode

300

What do you find when you add up all the values in a data set and then divide by the amount of values?

The mean or average

400

A number or ratio expressed as a fraction of 100

Percent

500

The space (or area) inside a 3D polygon or shape

Volume