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JAMB Mathematics 2010 Question 10

Question 10

Fractions, Decimals and Approximation

Express the product of 0.21 and 0.34 in standard form

  1. A.7.14 × 10−3
  2. B.7.14 × 10−1
  3. C.7.14 × 10−2
  4. D.7.14 × 10−4
Show the answer and explanation

Answer: C (7.14 × 10−2)

Explanation

0.21 × 0.34 = 0.0714 = 7.14 × 10−2.