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 multiplied by 4 (3 x 4) means adding 3 four times (3 + 3 + 3 + 3).

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, 1/2 means one part out of two equal parts.

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 and then divide by the denominator. For example, 3 x 2/5 = (3 x 2) / 5 = 6/5.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Front

What does 'of' mean in math?

Back

In math, 'of' often means to multiply. For example, '3/4 of 20' means 3/4 x 20.

Tags

CCSS.5.NF.B.3

Front

What is the product of 2/4 and 8?

Back

The product is 4. (2/4) x 8 = 16/4 = 4.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Front

How do you find a fraction of a number?

Back

To find a fraction of a number, multiply the number by the numerator and then divide by the denominator. For example, to find 3/8 of 64, calculate (3 x 64) / 8 = 24.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Front

What is 4/5 of 45?

Back

4/5 of 45 is 36. (4/5) x 45 = 36.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Front

What is the result of 2/3 x 15?

Back

The result is 10. (2/3) x 15 = 10.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Front

What is the denominator in a fraction?

Back

The denominator is the bottom number of a fraction that indicates how many equal parts the whole is divided into.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B