Estimate and place square roots and pi on a number line

Answer Key - Grade 8 Math Worksheet

Circle the best answer, or write your answer on the line.

2. 1.

   Esme measures a diagonal that works out to √60. Between which two whole numbers is √60?

   • 30 and 31
   • 7 and 8
   • 8 and 9
   • 6 and 7
3. 2.

   Luz rounds √44 to the nearest whole number. Which whole number is √44 closer to?

   Use the picture in question 1.

   • 6
   • 7
   • 6.5
5. 3.

   Ren estimates √12 for a model. What is √12 to the nearest tenth?

   3.5
6. 4.

   Tala rounds √43 on a calculator. What is √43 to the nearest tenth?

   Use the picture in question 3.

   6.6
7. 5.

   Zee finds √27 for a robot's path. What is √27 to the nearest tenth?

   Use the picture in question 3.

   5.2
8. 6.

   Ari marks four points on a number line for a poster. Which point is closest to √18?

   • Point A
   • Point B
   • Point D
   • Point C
9. 7.

   Bo plots four points for a math club. Which point is closest to √26?

   • Point B
   • Point C
   • Point A
   • Point D
10. 8.

    Esme labels four points on a number line. Which point is closest to √47?

    • Point D
    • Point A
    • Point C
    • Point B
11. 9.

    Kira subtracts a root from 9 on a worksheet. Between which two whole numbers is 9 − √45?

    • 6 and 7
    • 1 and 2
    • 15 and 16
    • 2 and 3
12. 10.

    Luz subtracts a root from 12 in a puzzle. Between which two whole numbers is 12 − √70?

    • 2 and 3
    • 20 and 21
    • 8 and 9
    • 3 and 4