Multiply Multidigit 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 = 12.

Front

What is a multidigit number?

Back

A multidigit number is a number that has two or more digits. For example, 25, 563, and 1,234 are all multidigit numbers.

Front

What does the term 'product' mean in multiplication?

Back

The product is the result of multiplying two or more numbers together. For example, in 4 x 5 = 20, 20 is the product.

Front

What is the area model in multiplication?

Back

The area model is a visual representation of multiplication that breaks numbers into parts to make the calculation easier. It shows how to multiply using rectangles to represent the numbers.

Front

How do you use the area model to multiply 13 and 7?

Back

Break 13 into 10 and 3. Then, multiply: (10 x 7) + (3 x 7) = 70 + 21 = 91.

Front

What is repeated addition?

Back

Repeated addition is a way to express multiplication as adding the same number multiple times. For example, 4 x 3 can be written as 4 + 4 + 4 = 12.

Front

What is the first step in multiplying multidigit numbers?

Back

The first step is to align the numbers vertically by their place values (ones, tens, hundreds, etc.).

Front

How do you multiply a number by 10?

Back

To multiply a number by 10, simply add a zero to the end of the number. For example, 5 x 10 = 50.

Front

What is the missing number in the area model for 2,563 x 7?

Back

The missing number is 17,941, which is the product of 2,563 and 7.

Front

How many calories are in 42 candy bars if one candy bar has 15 calories?

Back

There are 630 calories in 42 candy bars, calculated as 15 x 42 = 630.