Multiply by Multi-Digit Numbers

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).

Front

What is a multi-digit number?

Back

A multi-digit number is a number that has two or more digits. For example, 45, 123, and 9,876 are all multi-digit numbers.

Front

How do you multiply a multi-digit number by a single-digit number?

Back

To multiply a multi-digit number by a single-digit number, multiply each digit of the multi-digit number by the single-digit number, starting from the rightmost digit, and carry over if necessary.

Front

What is the product of 9,345 and 6?

Back

The product of 9,345 and 6 is 56,070.

Front

How do you find the total cost of multiple items?

Back

To find the total cost of multiple items, multiply the price of one item by the number of items. For example, if one chromebook costs $259 and you buy 2, the total cost is 2 x 259 = $518.

Front

What is the product of 724 and 7?

Back

The product of 724 and 7 is 5,068.

Front

How do you calculate the total number of people carried by a ferry?

Back

To calculate the total number of people carried by a ferry, multiply the number of trips by the capacity of the ferry. For example, if a ferry makes 4 trips and holds 88 people, the total is 4 x 88 = 352 people.

Front

What expression can be used to find out how many hammers are produced in 3 hours if a factory produces 2,354 hammers every hour?

Back

The expression is (3 x 2,000) + (3 x 300) + (3 x 50) + (3 x 4).

Front

What is the importance of carrying over in multiplication?

Back

Carrying over in multiplication is important when the product of a digit exceeds 9. It ensures that the value is correctly placed in the next higher place value.

Front

What is the difference between a factor and a product?

Back

A factor is a number that is multiplied by another number to get a product. For example, in 3 x 4 = 12, 3 and 4 are factors, and 12 is the product.