NC Check-in #1 Review

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What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 3 multiplied by 4 (3 x 4) means adding 3 four times: 3 + 3 + 3 + 3 = 12.

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How do you calculate total earnings from a weekly salary?

Back

To calculate total earnings from a weekly salary, multiply the weekly salary by the number of weeks worked. For example, if you earn $124 a week for 7 weeks, you calculate: 124 x 7 = $868.

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What is division?

Back

Division is a mathematical operation where a number is split into equal parts. For example, if you have 12 candies and want to share them with 3 friends, each friend gets 12 ÷ 3 = 4 candies.

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How do you find the average monthly consumption from yearly consumption?

Back

To find the average monthly consumption from yearly consumption, divide the total yearly amount by 12 (the number of months in a year). For example, if a dog eats 264 pounds of food a year, the monthly consumption is 264 ÷ 12 = 22 pounds.

Front

What is a fraction?

Back

A fraction represents a part of a whole. It consists of a numerator (top number) and a denominator (bottom number). For example, 3/4 means 3 parts out of 4 equal parts.

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How do you share items equally among friends?

Back

To share items equally among friends, divide the total number of items by the number of friends. For example, if Sammy has 11 candy bars and shares them with 3 friends, each friend gets 11 ÷ 3 = 3 with a remainder of 2, or 3 2/3 candy bars each.

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What is the formula for calculating distance traveled?

Back

The formula for calculating distance traveled is: Distance = Speed x Time. For example, if Cindy drives 192 miles per day for 6 days, the total distance is 192 x 6 = 1152 miles.

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What is the concept of equal distribution?

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Equal distribution means dividing something into equal parts so that everyone gets the same amount. For example, if 57 bags of rice are placed on 3 shelves, each shelf gets 57 ÷ 3 = 19 bags.

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What is a word problem in mathematics?

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A word problem is a mathematical question presented in a narrative form, requiring the reader to extract relevant information and perform calculations to find the solution.

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How do you convert a mixed number to an improper fraction?

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To convert a mixed number to an improper fraction, multiply the whole number by the denominator and add the numerator. For example, 3 2/3 becomes (3 x 3 + 2)/3 = 11/3.