multiply double digits

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 3 x 4 means adding 3 four times (3 + 3 + 3 + 3 = 12).

Front

What does it mean to multiply double digits?

Back

Multiplying double digits means multiplying numbers that have two digits each, such as 12 x 15.

Front

How do you multiply two double-digit numbers?

Back

To multiply two double-digit numbers, you can use the standard algorithm: multiply the ones place, then the tens place, and add the results.

Front

What is the product of 19 and 15?

Back

The product of 19 and 15 is 285.

Front

What is the product of 15 and 15?

Back

The product of 15 and 15 is 225.

Front

If a store orders 144 cans of tennis balls and each can contains 3 balls, how many balls are there in total?

Back

There are 432 tennis balls in total (144 x 3 = 432).

Front

How many pounds of water plants can a manatee eat in a week if it eats 112 pounds a day?

Back

A manatee can eat 784 pounds of water plants in a week (112 x 7 = 784).

Front

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

Back

The first step is to multiply the ones place of the bottom number by the top number.

Front

What is the second step in multiplying double-digit numbers?

Back

The second step is to multiply the tens place of the bottom number by the top number and shift the result one place to the left.

Front

What is an example of a multiplication problem involving double digits?

Back

An example is 23 x 45.