PreAlgebra Midterm Review

Front

Which number is not a natural number?

Back

√6 - √6 is not a natural number because it equals 0, and natural numbers are positive integers (1, 2, 3, ...).

Front

If x = 8 and y = 3, find the value of the expression: 1/6 x^2y - 2y^4

Back

The value is -130.

Front

Find the value of w in the equation: w + 13 = -11 - 5w

Back

w = 1/3.

Front

Write 3/8 as a percent.

Back

3/8 as a percent is 37.5%.

Front

Kristy’s yearly salary is $75,000. Write this in scientific notation.

Back

In scientific notation, it is 7.5 × 10⁴.

Front

What is a natural number?

Back

Natural numbers are the set of positive integers starting from 1 (1, 2, 3, ...).

Front

What is the formula for finding the area of a rectangle?

Back

Area = length × width.

Front

How do you convert a fraction to a decimal?

Back

Divide the numerator by the denominator.

Front

What is the value of π (pi) approximately?

Back

π is approximately 3.14.

Front

What is the process to solve for x in the equation 2x + 3 = 11?

Back

Subtract 3 from both sides, then divide by 2: x = 4.