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.

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

   4.9
5. 5.

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

   -2.9
6. 6.

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

   -4.3
7. 7.

   Tala tests ∛65 against 4.1 for a game. Which statement is true?

   • ∛65 is less than 4.1
   • ∛65 is greater than 4.1
   • ∛65 equals 4.1
8. 8.

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

   • ∛95 equals 4.6
   • ∛95 is greater than 4.6
   • ∛95 is less than 4.6
9. 9.

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

   • ∛120 equals 4.8
   • ∛120 is greater than 4.8
   • ∛120 is less than 4.8
10. 10.

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

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