Multi-digit Multiplication

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What is multi-digit multiplication?

Back

Multi-digit multiplication is the process of multiplying numbers that have two or more digits. It involves breaking down the numbers into smaller parts, multiplying them, and then adding the results together.

Front

How do you multiply a two-digit number by a one-digit number?

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To multiply a two-digit number by a one-digit number, multiply each digit of the two-digit number by the one-digit number, starting from the rightmost digit, and then add the results.

Front

What is the area model in multiplication?

Back

The area model is a visual way to represent multiplication. It involves drawing a rectangle and dividing it into smaller rectangles to represent the factors being multiplied.

Front

What is the standard algorithm for multi-digit multiplication?

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The standard algorithm involves writing the numbers vertically, multiplying each digit of the bottom number by each digit of the top number, and then adding the partial products.

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What is a partial product?

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A partial product is the result of multiplying a single digit of one number by the entire other number in multi-digit multiplication.

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How do you estimate the product of two numbers?

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To estimate the product, round each number to the nearest ten or hundred and then multiply the rounded numbers.

Front

What is the distributive property in multiplication?

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The distributive property states that a(b + c) = ab + ac. It allows you to break down a multiplication problem into smaller, easier parts.

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Calculate: 124 guests at $38 each. How much money was spent in all?

Back

$4,712

Front

Calculate: Alan pays $85 a month for 14 months. How much will he pay in all?

Back

$1,190

Front

Calculate: 12 cartons of tennis balls with 124 balls each. How many tennis balls did the coach order?

Back

1,488 tennis balls