4 - Double Digit Multiplication

Front

What is double-digit multiplication?

Back

Double-digit multiplication is the process of multiplying two numbers that each have two digits, such as 23 x 45.

Front

How do you multiply two double-digit numbers?

Back

To multiply two double-digit numbers, you can use the standard algorithm: multiply each digit of the first number by each digit of the second number, then add the results.

Front

What is the product of 64 and 84?

Back

5,376

Front

What is the product of 93 and 21?

Back

1,953

Front

If Milagro has 156 cookies and each box holds 52 cookies, how many boxes does she fill?

Back

3

Front

If Stevenson has 14 tanks and puts 32 crabs in each tank, how many crabs does he have in total?

Back

448

Front

What is the product of 37 and 53?

Back

1,961

Front

What is the first step in the standard algorithm for double-digit multiplication?

Back

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

Front

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

Back

Multiply the tens place of the bottom number by the ones place of the top number, and then add a zero to the right.

Front

What is the importance of lining up numbers correctly in multiplication?

Back

Lining up numbers correctly ensures that you add the products in the right place value.