Midterm Review

Front

What is 20% of a number?

Back

20% of a number is the same as multiplying the number by 0.20.

Front

If 20% of the kids on a lacrosse team have never played before and there are 4 kids who have never played, how do you find the total number of kids on the team?

Back

To find the total number of kids, divide the number of kids who have never played (4) by 20% (0.20). Total kids = 4 / 0.20 = 20.

Front

What are whole numbers?

Back

Whole numbers are non-negative numbers without fractions or decimals, including 0 (0, 1, 2, 3, ...).

Front

Which of the following is a whole number: -27.0, 0.05, 19, or \frac{2}{3}?

Back

19 is a whole number.

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero (e.g., -3, 0, 4).

Front

Which integer is greater than -20?

Back

-18 is greater than -20.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to combine like terms and reduce it to its simplest form.

Front

What is the expression for combining like terms in 12 + 3m - 5m + 4?

Back

The simplified expression is 16 - 2m.

Front

What is the product of two negative numbers?

Back

The product of two negative numbers is positive.

Front

What is the product of -4 and -3?

Back

The product of -4 and -3 is 12.