Two Digit by Two Digit Multiplication

Front

What is two-digit by two-digit multiplication?

Back

It is the process of multiplying two numbers that each have two digits, such as 23 x 45.

Tags

CCSS.4.NBT.B.5

Front

How do you set up a two-digit multiplication problem?

Back

Write the numbers one above the other, aligning them by place value.

Tags

CCSS.4.NBT.B.5

Front

What is the first step in multiplying two-digit numbers?

Back

Multiply the ones place of the bottom number by the top number.

Tags

CCSS.4.NBT.B.5

Front

What do you do after multiplying the ones place in two-digit multiplication?

Back

Multiply the tens place of the bottom number by the top number and shift the result one place to the left.

Tags

CCSS.4.NBT.B.5

Front

What is the purpose of adding the results in two-digit multiplication?

Back

To combine the products from the ones and tens place to get the final answer.

Tags

CCSS.3.OA.C.7

Front

Example: What is 25 x 16?

Back

400

Tags

CCSS.4.NBT.B.5

Front

If a store has 120 employees and each needs 5 uniforms, how many uniforms are needed?

Back

600 uniforms (120 x 5 = 600).

Tags

CCSS.3.OA.A.3

Front

How many pages are in a book with 15 chapters and 24 pages each?

Back

360 pages (15 x 24 = 360).

Front

If Rob exercises for 46 hours a week, how many hours does he exercise in 15 weeks?

Back

690 hours (46 x 15 = 690).

Front

How many seats are in 23 rows with 36 seats each?

Back

828 seats (23 x 36 = 828).