Multiplying Whole Numbers and Fractions

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 3 x 4 means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Tags

CCSS.3.OA.A.1

Front

What is a whole number?

Back

A whole number is a number without fractions or decimals. Whole numbers include 0, 1, 2, 3, and so on.

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). For example, in the fraction 1/2, 1 is the numerator and 2 is the denominator.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

How do you multiply a whole number by a fraction?

Back

To multiply a whole number by a fraction, multiply the whole number by the numerator of the fraction and then divide by the denominator. For example, 3 x 1/2 = 3 x 1 = 3, then 3 ÷ 2 = 1.5.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Front

What is the product of 6 and 1/3?

Back

The product of 6 and 1/3 is 2. To find this, multiply 6 by 1 (which is 6) and then divide by 3: 6 ÷ 3 = 2.

Tags

CCSS.4.NF.B.4A

CCSS.4.NF.B.4B

Front

What does it mean to compare numbers?

Back

Comparing numbers involves determining which number is greater, less than, or equal to another number. This can be done using symbols: > (greater than), < (less than), or = (equal to).

Tags

CCSS.1.NBT.B.3

Front

What is the difference between 2.05 and 1.97?

Back

To compare 2.05 and 1.97, we see that 2.05 is greater than 1.97, so we write 2.05 > 1.97.

Tags

CCSS.5.NBT.B.7

Front

How do you find a fraction of a whole number?

Back

To find a fraction of a whole number, multiply the whole number by the numerator of the fraction and then divide by the denominator. For example, to find 1/4 of 12, calculate 12 x 1 = 12, then 12 ÷ 4 = 3.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction. For example, 1 1/2 is a mixed number, where 1 is the whole number and 1/2 is the fraction.

Tags

CCSS.3.NF.A.3C

Front

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) of two numbers is the smallest number that is a multiple of both. For example, the LCM of 4 and 5 is 20.