Multiplying by 2- and 3-Digit Numbers (Without Regrouping)

Front

What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 3 x 4 means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Tags

CCSS.3.OA.A.1

Front

What does it mean to multiply by a 2-digit number?

Back

Multiplying by a 2-digit number means you are multiplying a number by a number that has two digits, like 21 or 34.

Tags

CCSS.4.NBT.B.5

Front

What does it mean to multiply by a 3-digit number?

Back

Multiplying by a 3-digit number means you are multiplying a number by a number that has three digits, like 123 or 456.

Tags

CCSS.4.NBT.B.5

Front

321 x 3 = ?

Back

963

Tags

CCSS.4.NBT.B.5

Front

4 x 21 = ?

Back

84

Tags

CCSS.4.NBT.B.5

Front

231 x 3 = ?

Back

693

Tags

CCSS.4.NBT.B.5

Front

43 x 2 = ?

Back

86

Tags

CCSS.4.NBT.B.5

Front

What is the product of two numbers?

Back

The product is the result of multiplying two numbers together.

Tags

CCSS.3.OA.A.1

Front

What is the commutative property of multiplication?

Back

The commutative property states that changing the order of the numbers you are multiplying does not change the product. For example, 2 x 3 = 3 x 2.

Tags

CCSS.3.OA.B.5

Front

What is the associative property of multiplication?

Back

The associative property states that when multiplying three or more numbers, the way in which the numbers are grouped does not change the product. For example, (2 x 3) x 4 = 2 x (3 x 4).

Tags

CCSS.3.OA.B.5