Christmas Math Review 5th Grade

Front

What is expanded form?

Back

Expanded form is a way of writing numbers to show the value of each digit. For example, 307,657 in expanded form is 300,000 + 7,000 + 600 + 50 + 7.

Tags

CCSS.4.NBT.A.2

Front

How do you evaluate an expression by plugging in a number?

Back

To evaluate an expression, replace the variable with the given number and perform the operations. For example, for x^4 + 25 when x is 2, calculate 2^4 + 25 = 16 + 25 = 41.

Tags

CCSS.6.EE.A.2C

Front

What are multiples of a number?

Back

Multiples of a number are the results of multiplying that number by whole numbers. For example, the multiples of 9 are 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108.

Front

How do you divide a number?

Back

To divide a number, you split it into equal parts. For example, 38,628 divided by 12 equals 3,219.

Tags

CCSS.5.NBT.B.6

CCSS.6.NS.B.2

Front

What is subtraction in math?

Back

Subtraction is the process of taking one number away from another. For example, 256.23 - 112 = 144.23.

Tags

CCSS.5.NBT.B.7

Front

What is a digit?

Back

A digit is any of the numerals from 0 to 9 used to represent numbers.

Tags

CCSS.1.NBT.A.1

Front

What is a variable in math?

Back

A variable is a symbol, often a letter, that represents a number in mathematical expressions or equations.

Tags

CCSS.6.EE.A.2B

Front

What does it mean to evaluate an expression?

Back

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

Tags

CCSS.6.EE.A.2C

Front

What is the order of operations?

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). Often remembered as PEMDAS.

Tags

CCSS.7.EE.B.3

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.

Tags

CCSS.3.NF.A.2B

CCSS.3.NF.A.1