MCAS Review 1

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What are factors?

Back

Factors are numbers that can be multiplied together to get another number. For example, the factors of 6 are 1, 2, 3, and 6.

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What are multiples?

Back

Multiples of a number are the result of multiplying that number by integers. For example, the first 5 multiples of 6 are 6, 12, 18, 24, and 30.

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What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. The first 4 prime numbers are 2, 3, 5, and 7.

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How do you subtract decimals?

Back

To subtract decimals, align the decimal points and subtract as you would with whole numbers, then place the decimal point in the answer.

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Back

The result is 17.081.

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What is division of fractions?

Back

To divide fractions, multiply the first fraction by the reciprocal of the second fraction.

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Front

What is the formula for finding the area of a rectangle?

Back

The area of a rectangle is found by multiplying its length by its width: Area = length × width.

Front

What is the formula for finding the perimeter of a rectangle?

Back

The perimeter of a rectangle is found by adding together the lengths of all sides: Perimeter = 2(length + width).