What is the approximate value of $$\text{√}10$$ ?

The approximate value of $$\text{√}10$$ is about 3.16, since it lies between 3 (3^2 = 9) and 4 (4^2 = 16).

How do you simplify square roots?

To simplify a square root, factor the number into its prime factors and pair them. For example, $$\text{√}18 = \text{√}(9 \times 2) = 3\text{√}2$$ .

What is the square root of 25?

The square root of 25 is 5, because 5 x 5 = 25.

What is the relationship between square roots and exponents?

The square root of a number can be expressed as an exponent: $$\text{√}x = x^{1/2}$$ .

How do you find the square root of a decimal?

To find the square root of a decimal, convert it to a fraction if possible, then find the square root of the numerator and denominator separately. For example, $$\text{√}0.04 = \text{√}\frac{4}{100} = \frac{2}{10} = 0.2$$ .

How do you approximate square roots using a number line?

To approximate square roots using a number line, mark the perfect squares on the line and find where the number lies between them. For example, to approximate $$\text{√}5$$ , note it lies between 2 (4) and 3 (9).

Approximating Square Roots Flashcards

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a square root?

Back

A square root of a number is a value that, when multiplied by itself, gives the original number. For example, the square root of 9 is 3, because 3 x 3 = 9.

Tags

CCSS.8.EE.A.2

2.

FLASHCARD QUESTION

Front

How do you approximate a square root?

Back

Tags

CCSS.8.NS.A.2

3.

FLASHCARD QUESTION

Front

What is the square root of 0.25?

Back

The square root of 0.25 is 0.5, because 0.5 x 0.5 = 0.25.

Tags

CCSS.8.NS.A.2

4.

FLASHCARD QUESTION

Front

Convert 0.7 to a fraction.

Back

5.

FLASHCARD QUESTION

Front

Convert 0.5 to a fraction.

Back

6.

FLASHCARD QUESTION

Front

What is the square root of 16?

Back

The square root of 16 is 4, because 4 x 4 = 16.

Tags

CCSS.8.EE.A.2

7.

FLASHCARD QUESTION

Front

How can you check if a number is a perfect square?

Back

Tags

CCSS.8.NS.A.1

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