Proficiency 2 Study Guide

Front

What is a composite number?

Back

A composite number is a whole number greater than 1 that has more than two distinct positive divisors, meaning it can be divided evenly by numbers other than 1 and itself. Example: 21 is a composite number because it can be divided by 1, 3, 7, and 21.

Front

Decompose the fraction 6/10.

Back

6/10 can be decomposed into 2/10 + 4/10.

Front

What is 7/8 decomposed into smaller fractions?

Back

7/8 can be decomposed into 4/8 + 2/8 + 1/8.

Front

What is 5 x 1/8?

Back

5 x 1/8 = 5/8.

Front

Compare the fractions 3/8 and 2/3.

Back

3/8 < 2/3.

Front

What is a fraction?

Back

A fraction represents a part of a whole and is expressed as a numerator (top number) over a denominator (bottom number). Example: In 1/2, 1 is the numerator and 2 is the denominator.

Front

What is the numerator in a fraction?

Back

The numerator is the top number in a fraction that indicates how many parts of the whole are being considered. Example: In 3/4, 3 is the numerator.

Front

What is the denominator in a fraction?

Back

The denominator is the bottom number in a fraction that indicates the total number of equal parts the whole is divided into. Example: In 3/4, 4 is the denominator.

Front

What does it mean to decompose a fraction?

Back

To decompose a fraction means to break it down into a sum of smaller fractions that add up to the original fraction.

Front

What is a proper fraction?

Back

A proper fraction is a fraction where the numerator is less than the denominator. Example: 3/4 is a proper fraction.