Grade 8 · Math
Multiply in scientific notation practice
Multiply powers-of-ten notation and normalize the result.
Opening your practice adventure…
Try a sample
Write (5 × 103) × (3 × 104) in scientific notation.
- 1.6 × 108
- 1.5 × 108
- 1.5 × 107
- 1.5 × 109
See the answer & why
1.5 × 108
Multiply coefficients and add exponents, then make the leading coefficient at least 1 and less than 10: 1.5 × 108.
A little hint: Normalize the coefficient after multiplying.
A teaching tip
Multiply coefficients, add exponents, then adjust the leading coefficient.