Multiple choice

Represent 0.0001234 in standard index form.

  1. 1.234 × 10-4

  2. 1.234 × 1<span style="font-family:">0<sup style="font-family:">-5

  3. 1.234 × 10-6

  4. 1.234 × 10-7
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

0.0001234 = 1.234 × 0.0001 = 1.234 × 10^-4. To get one non-zero digit before the decimal, move it 4 places right (from 0.0001234 to 1.234), giving exponent -4.

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