7th Mathletes 03/04

Math Vocab

100

Two ways we can represent parts of a whole

Fractions and decimals

200

Inverse operation of subtraction

Addition

300

A triangle with a 90 degree angle

Right triangle

400

Property that states a factor outside the parenthesis must be multiplied to all the terms inside the parentheses

Distributive property

500

In a division problem, the dividend is being divided by the what to get the quotient?

Divisor

One Step Equations

100

z + 5 = 5

z = 0

200

m - 99 = 3

m = 102

300

17p = 51

p = 3

400

4.8b = 108 

b = 22.5

500

q/7 = 11 1/2

q = 80.5 or 80 1/2 or 161/2

Two Step Equations

100

2k + 21 = 2021

k = 1000

200

3m + 5m + 15 = 175

m = 20

300

2(t + 8) = -10

t = -13

400

-3(q - 4) = -36

q = 16

500

-3/5(y - 14) = 54

y = -76

PEMDAS

100

True or False: Multiplication always comes before division

False

200

True or False: Addition always comes before subtraction

False

300

5 - 3 + 8

10

400

5(4) - 10÷4 

17.5

500

7(8 - (6÷(2+2²))) - 9

40

Percents

100

Eight is 5% of what number?

160

200

Amanda got a 21/28 on her test. What is her percent score?

75%

300

What is 25% of 60?

15

400

A restaurant bill comes to $34.60. You decide to leave an 15% tip. What is the total cost of the bill?

$39.79

500

Kim bought a hat in California. The hat cost $15 before the 8% sales tax was applied. How much did Kim pay for the hat after taxes were added?

$16.20