Multiplying Whole Numbers

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What is multiplication?

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

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What is the product in multiplication?

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The product is the result of multiplying two or more numbers together. For example, in 5 x 6 = 30, 30 is the product.

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How do you multiply a whole number by 10?

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To multiply a whole number by 10, simply add a zero to the end of the number. For example, 7 x 10 = 70.

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What is an array in multiplication?

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An array is a visual representation of multiplication using rows and columns. For example, 3 rows of 4 objects each represent 3 x 4.

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How can you check your multiplication answer?

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You can check your multiplication answer by using division. If 4 x 5 = 20, then 20 ÷ 5 should equal 4.

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What is the commutative property of multiplication?

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The commutative property states that changing the order of the numbers in multiplication does not change the product. For example, 2 x 3 = 3 x 2.

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What is the associative property of multiplication?

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The associative property states that when multiplying three or more numbers, the way in which the numbers are grouped does not change the product. For example, (2 x 3) x 4 = 2 x (3 x 4).

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How do you multiply two-digit numbers?

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To multiply two-digit numbers, you can use the standard algorithm: multiply each digit of the first number by each digit of the second number, then add the results.

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What is a word problem in multiplication?

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A word problem is a mathematical problem that is presented in a narrative form, requiring you to extract the numbers and operations needed to solve it.

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How do you solve a multiplication word problem?

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To solve a multiplication word problem, identify the quantities involved, determine what is being asked, and set up a multiplication equation.