7th Grade Math Boost

Vocabulary

100

What is the definition of a negative number/

A real number that is less than zero

200

What is the definition of a variable?

A letter used to represent a number value in an expression or an equation.

300

What is the definition of a whole number?

The set of numbers that includes zero and all of the natural numbers.

400

What is the definition of a natural number?

The counting numbers.

500

What is the definition of a denominator?

The bottom part of a fraction.

Exponents

100

4^2=?

4x4= 16

200

6³=?

6x6x6=216

300

10⁴=?

10x10x10x10=10,000

400

2²+3²+4²=?

29

500

5⁴-10²=?

625-100=525

Negative Numbers

100

-2+1=?

-1

200

-5+5=?

0

300

-20 - ^- 18=?

-2

400

7-11=?

-4

500

-100 <,>,+= -10

<

Combine Like Terms

100

2k + K =

3k

200

4s-2s=?

2s

300

-6p + 4p + 2p=?

0

400

2ab +3ab + 4a+ 6b -3 =

6ab +4a +6b-3 

500

5+2y+x-1+ 2x+3y+6=?

10 +5y+3x 

Pot Luck

100

How many degrees does a triangle =?

180⁰

200

9²=?

81

300

2x+5=7

x=1

400

What is 50% of 329?

164.50

500

Convert 1¹/₂  to a decimal

1.5