Pre-Algebra Pre-test

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed. The acronym PEMDAS helps remember the order: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What is a fraction?

Back

A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number). For example, 1/2 means one part out of two equal parts.

Front

How do you add fractions with different denominators?

Back

To add fractions with different denominators, first find a common denominator, convert the fractions, and then add the numerators. For example, to add 1/3 and 1/4, the common denominator is 12, so 1/3 becomes 4/12 and 1/4 becomes 3/12. Then, 4/12 + 3/12 = 7/12.

Front

What is a decimal?

Back

A decimal is a way of representing fractions using a base-10 system. It uses a decimal point to separate the whole number part from the fractional part. For example, 0.75 represents 75/100.

Front

How do you convert a decimal to a percent?

Back

To convert a decimal to a percent, multiply the decimal by 100 and add a percent sign. For example, 0.35 x 100 = 35%.

Front

What is an exponent?

Back

An exponent is a number that indicates how many times to multiply the base by itself. For example, in 5^3, 5 is the base and 3 is the exponent, meaning 5 x 5 x 5 = 125.

Front

What is the product of 1.15 and 6.4?

Back

1.15 x 6.4 = 7.36.

Front

What is the value of (6*7)+6-4 / 4?

Back

(6*7)+6-4 / 4 = 11.

Front

What is the sum of 3/5 and 1/4?

Back

3/5 + 1/4 = 17/20.

Front

What is the value of 5^3?

Back

5^3 = 125.