Estimate a cube root between whole numbers and to the nearest tenth

Answer Key - Grade 8 Math Worksheet - Challenge Me

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

1. 1.

   Esme has a cube-shaped eraser with a volume of 12 cubic centimeters. What is its edge to the nearest tenth of a centimeter?

   2.3
2. 2.

   Jun cuts a cube-shaped foam block with a volume of 59 cubic centimeters. What is its edge to the nearest tenth of a centimeter?

   3.9
3. 3.

   Luz finds a cube-shaped box that holds 116 cubic inches. What is its edge to the nearest tenth of an inch?

   4.9
4. 4.

   Noah checks ∛(−46) for a puzzle. What is ∛(−46) to the nearest tenth?

   -3.6
5. 5.

   Pia adds ∛(−79) to a poster line of numbers. What is ∛(−79) to the nearest tenth?

   -4.3
6. 6.

   Ren wonders whether ∛50 is more or less than 3.7. Which statement is true?

   • ∛50 equals 3.7
   • ∛50 is less than 3.7
   • ∛50 is greater than 3.7
7. 7.

   Ari compares ∛120 with 4.8 using toy blocks. Which statement is true?

   • ∛120 is greater than 4.8
   • ∛120 equals 4.8
   • ∛120 is less than 4.8
8. 8.

   Bo stacks a cube-shaped storage crate that holds 300 cubic feet, so its edge is ∛300. Between which two whole numbers is ∛300?

   • 6 and 7
   • 7 and 8
   • 5 and 6
   • 17 and 18
9. 9.

   Esme places ∛400 on a poster number line. Between which two whole numbers is ∛400?

   • 6 and 7
   • 20 and 21
   • 7 and 8
   • 8 and 9
10. 10.

    Kira adds ∛900 to a number line (the poster is getting long). Between which two whole numbers is ∛900?

    • 9 and 10
    • 8 and 9
    • 10 and 11
    • 30 and 31