7th Grade Number Systems Review

Front

What is the difference between two temperatures of 136 degrees and -50 degrees?

Back

186

Front

Which of the following is the largest: 45 %, 12 %, 0.36, 40/100?

Back

45 %

Front

Calculate: -8(-4) + 18 - (-7) + 13

Back

70

Front

Evaluate: (−2)(−4) + 9^2

Back

89

Front

What is the result of multiplying -2 and 7/54?

Back

-8/21

Front

Define absolute value.

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction a/b, where a and b are integers and b is not zero.

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

Front

What is the sum of -5 and 8?

Back

3

Front

What is the product of two negative numbers?

Back

The product of two negative numbers is a positive number.