Multiple Choice Questions
Unit A3
Scientific Notation
For each of these questions, choose the option (A, B, C or D) that is TRUE.
1
213.49 in standard form is
  • (A)
    2.1349 × 102
  • (B)
    0.21349 × 103
  • (C)
    2.13 × 102
  • (D)
    2.1349 × 10−2
2
0.03249 in standard form to 3 significant figures is
  • (A)
    3.24 × 10−1
  • (B)
    3.24 × 10−2
  • (C)
    3.25 × 10−2
  • (D)
    3.25 × 10−3
3
0.045 × 10−3 in standard form is
  • (A)
    4.5 × 10−6
  • (B)
    4.5 × 10−5
  • (C)
    4.5 × 10−4
  • (D)
    4.5 × 10−1
4
0.362 in standard form is
  • (A)
    0.01296 × 101
  • (B)
    1.296 × 10−1
  • (C)
    0.1296 × 100
  • (D)
    12.96 × 10−2
5
4.2 × 10−2 is the number
  • (A)
    420
  • (B)
    0.42
  • (C)
    0.042
  • (D)
    0.0042
Total: - of marks
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