Multiplying Multi-Digit Numbers

Front

What is multiplication?

Back

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

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What does the term 'multi-digit number' mean?

Back

A multi-digit number is a number that has two or more digits. For example, 23, 456, and 7,890 are all multi-digit numbers.

Front

What is an array in multiplication?

Back

An array is a visual representation of multiplication using rows and columns. For example, 4 rows of 5 objects each can be represented as 4 x 5.

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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.

Front

What is the product of 4 x 5?

Back

The product of 4 x 5 is 20.

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What is the tens place in a number?

Back

The tens place is the second digit from the right in a number. For example, in the number 1,659, the digit in the tens place is 5.

Front

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

Back

Start by multiplying with the digit on the bottom right.

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What is the value of 7 in the number 7430?

Back

In the number 7430, the 7 is in the thousands place, which means it represents 7,000.

Front

What is the equation for 4 x 75?

Back

The equation for 4 x 75 is 300.

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How do you check your multiplication answer?

Back

You can check your multiplication answer by using addition. For example, if you calculated 4 x 5 = 20, you can add 20 four times to see if it equals 80.