5th Grade Math STAAR Review

Front

What is mass?

Back

Mass is a measure of the amount of matter in an object, typically measured in kilograms or grams.

Front

How do you calculate the total mass of multiple objects?

Back

To find the total mass, multiply the mass of one object by the number of objects. For example, if one bucket of gravel has a mass of 7.05 kg, then 20 buckets have a mass of 7.05 kg x 20 = 141 kg.

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as 'a/b', where 'a' is the numerator and 'b' is the denominator.

Front

How do you find 1/5 of a number?

Back

To find 1/5 of a number, divide the number by 5. For example, 1/5 of 15 is 15 ÷ 5 = 3.

Front

How do you find 1/3 of a number?

Back

To find 1/3 of a number, divide the number by 3. For example, 1/3 of 15 is 15 ÷ 3 = 5.

Front

What is the sum of two numbers?

Back

The sum is the result of adding two or more numbers together.

Front

What is the order of operations in math?

Back

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

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by performing the operations indicated.

Front

What is the value of (12 + 2) x 5?

Back

The value is 70, because (12 + 2) = 14, and 14 x 5 = 70.

Front

What is the value of 6 x (8 - 4) ÷ 3?

Back

The value is 8, because (8 - 4) = 4, then 6 x 4 = 24, and 24 ÷ 3 = 8.