CBSE Class 8 Maths Power Play (Class 8 NCERT New) Quiz 3

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CBSE › Class 8 › Maths › Power Play (Class 8 NCERT New)

Answer all 10 questions, then tap Submit to see who wins.

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1. Write 0.00000032 in scientific notation.

A 3.2 × 10-6 B 32 × 10-7 C 3.2 × 1-7 D 3.2 × 10-7

2. What is the value of 53 ÷ 52?

A 25 B 5 C 1 D 125

3. Convert 0.00045 to scientific notation.

A 4.5 × 10-4 B 45 × 10-5 C 0.45 × 10-3 D 4.5 × 10-5

4. Which of the following is a cube number?

A 49 B 36 C 27 D 16

5. What is the value of 62 + 23?

A 38 B 40 C 36 D 44

6. Which of the following is a perfect cube number?

A 45 B 50 C 30 D 64

7. A sheet of paper is 0.001 cm thick. After each fold, its thickness doubles. What is the thickness after 3 folds?

A 0.008 cm B 0.010 cm C 0.006 cm D 0.004 cm

8. Folding a sheet 10 times multiplies its thickness by 1024. Which expression matches the thickness after 10 folds, starting from 0.001 cm?

A 0.001 cm × B 0.001 cm × C 0.001 cm × 2 × 10 D 0.001 cm +

9. Which part of is the base?

A 9 is the base B 25 is the base C 4 is the base D 5 is the base

10. Which rule justifies simplifying as ?

A Product rule: add exponents with same base B Quotient rule: subtract exponents of bases C Power rule: multiply exponents across bases D Zero rule: any nonzero base to power 0

Practice more on Power Play (Class 8 NCERT New)

Quiz 1 Quiz 2 Quiz 3 Quiz 4 Quiz 5

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