MATHS CLASS 8 CH - 7 CUBE AND CUBE ROOTS MENTAL MATHS

WHAT IS THE FIRST EVEN PERFECT CUBE NATURAL NUMBER

• 2

• 4

• 6

• 16

• 8

WHAT IS CUBE OF 7

• 7

• 49

• 279

• 343

Find the volume of a cube whose edge is 0.8m

• 0.512cm³

• 0.512cm²

• 0.512m³

• 0.512m²

• 0.2m

What will be the unit's digit in the cube of 743248

• 2

• 4

• 6

• 8

By which smallest natural number 1024 has to be divided to get a perfect cube

• 10

• 12

• 14

• 2

What is the sum of cubes of the first 4 natural numbers

• 110

• 90

• 95

• 100

What is the cube root of 91125?

Find the cube root of (1.728)

What will be the cube root 27*216

What is the cube root of 226

• 6

• 9

• 5

• none