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.

   Kira wraps a cube-shaped gift box with a volume of 84 cubic inches, and a bow is waiting. What is its edge to the nearest tenth of an inch?

   4.4
4. 4.

   Milo plots ∛(−25) in a notebook. A negative number cubed stays negative. What is ∛(−25) to the nearest tenth?

   -2.9
5. 5.

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

   -4.3
6. 6.

   Zee compares ∛95 with 4.6 on a worksheet. Which statement is true?

   • ∛95 is less than 4.6
   • ∛95 equals 4.6
   • ∛95 is greater than 4.6
7. 7.

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

   • ∛120 is less than 4.8
   • ∛120 is greater than 4.8
   • ∛120 equals 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
   • 17 and 18
   • 7 and 8
   • 5 and 6
9. 9.

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

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

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

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