Digits, Grade 8, Volume 1, Homework Helper

1-2: TEKS Practice

  • 1. Think About the Process

    • a. What is the first step in finding the two consecutive whole numbers between which square root of 845 is located?

      • A. Find the two perfect squares closest to 845.

      • B. fraction square root of 844 , plus , square root of 846 , over 2 end fraction . . .

      • C. Evaluate square root of 845 squared end root .

      • D. Evaluate square root of 845 .

    • b. On a number line, between which two whole numbers would square root of 845 be located?

      • A. 31 and 32

      • B. 29 and 30

      • C. 28 and 29

      • D. 30 and 31

  • 2. On a number line, between which two consecutive whole numbers would square root of 61 be located?

    • A. 7 and 8

    • B. 9 and 10

    • C. 6 and 7

    • D. 8 and 9

  • 3. The height of a painting is square root of 90 ft. Between which two consecutive whole numbers is square root of 90 ?

    • A. 11 and 12

    • B. 8 and 9

    • C. 10 and 11

    • D. 9 and 10

  • 4. Estimate square root of 15 to the nearest tenth. Then locate square root of 15 on a number line.

  • 5. Estimate square root of 136 to the nearest tenth.

  • 6. Estimate square root of 37 to the nearest hundredth. Then locate square root of 37 on a number line.

  • 7. Think About the Process

    • a. What is the second step in finding the two consecutive whole numbers between which square root of 185 is located?

      • A. Evaluate fraction square root of 184 , plus , square root of 186 , over 2 end fraction .

      • B. Find the square roots of the two perfect squares closest to 185.

      • C. Evaluate square root of 185 .

      • D. Evaluate square root of 185 squared end root .

    • b. Estimate square root of 185 to the nearest hundredth.

  • 8. The area of a square poster is 31 in.2. Find the length of one side of the poster to the nearest tenth of an inch.

  • 9. A tree is 16 feet tall. A wire runs from the top of the tree to a point 8 feet from its base. The wire is square root of 320 feet long. Estimate the length of the wire to the nearest hundredth of a foot.

  • 10.

    • a. Writing On a number line, between which two consecutive whole numbers would square root of 381 be located?

      • A. 19 and 20

      • B. 20 and 21

      • C. 18 and 19

      • D. 21 and 22

    • b. Explain why it might be useful to approximate the value rather than use the exact value.

  • 11. Mental Math The volume of displacement in an engine is square root of 84 L. Between which two consecutive whole numbers is square root of 84 ?

    • A. 8 and 9

    • B. 11 and 12

    • C. 10 and 11

    • D. 9 and 10


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Table of Contents

Digits, Grade 8, Volume 1, Homework Helper Unit A: Number and Operations Unit B: Proportionality Unit C: Expressions, Equations, and Relationships English/Spanish Glossary Formulas Math Symbols Formulas Measures Properties