Multiplication 2-digit by 1-digit

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 multiplied by 4 (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 a 2-digit number by a 1-digit number?

Back

It means to take a two-digit number and multiply it by a single-digit number, which can be thought of as repeated addition of the two-digit number.

Tags

CCSS.4.NBT.B.5

Front

How do you solve 26 x 2?

Back

You can think of it as adding 26 two times: 26 + 26 = 52.

Tags

CCSS.3.OA.C.7

Front

If Jacob eats 1 ice-cream cone every day, how do you find out how many days the cones will last?

Back

Multiply the total number of cones by the number of cones Jacob eats per day. For example, if there are 52 cones, it will last 52 days.

Tags

CCSS.3.OA.A.3

Front

What is the total number of folders if each of 19 students brings 4 folders?

Back

Multiply the number of students (19) by the number of folders each student brings (4): 19 x 4 = 76.

Tags

CCSS.3.OA.A.3

Front

How do you calculate the total number of stickers in 5 rows with 18 stickers each?

Back

Multiply the number of rows (5) by the number of stickers in each row (18): 5 x 18 = 90.

Tags

CCSS.3.OA.A.3

Front

What is the product of 44 and 8?

Back

44 x 8 = 352.

Tags

CCSS.4.NBT.B.5

Front

If Mrs. Hodge made 3 cookies for each of her 18 students, how do you find the total number of cookies?

Back

Multiply the number of students (18) by the number of cookies per student (3): 18 x 3 = 54.

Tags

CCSS.3.OA.A.3

Front

What is the commutative property of multiplication?

Back

The commutative property states that changing the order of the numbers in a multiplication problem does not change the product. For example, 3 x 4 = 4 x 3.

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