4th Grade Math Review

Front

What is expanded form?

Back

Expanded form is a way of writing numbers to show the value of each digit. For example, 7,432 in expanded form is 7,000 + 400 + 30 + 2.

Front

How do you identify perpendicular lines?

Back

Perpendicular lines are lines that intersect at a right angle (90 degrees).

Front

What is a fraction?

Back

A fraction represents a part of a whole. It consists of a numerator (top number) and a denominator (bottom number).

Front

What is an equivalent fraction?

Back

Equivalent fractions are different fractions that represent the same value. For example, 1/2 and 2/4 are equivalent.

Front

How do you multiply two numbers?

Back

To multiply two numbers, you can use repeated addition. For example, 5 x 3 means adding 5 three times: 5 + 5 + 5 = 15.

Front

What is rounding?

Back

Rounding is the process of adjusting a number to make it simpler while keeping its value close to what it was. For example, rounding 7,491 to the nearest hundred gives you 7,500.

Front

What are parallel lines?

Back

Parallel lines are lines that never meet and are always the same distance apart.

Front

What is the product of 55 and 41?

Back

The product of 55 and 41 is 2,255.

Front

How do you find the nearest hundred?

Back

To find the nearest hundred, look at the tens digit. If it's 5 or more, round up; if it's 4 or less, round down.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.