Scientific notation (standard form)
8th grade (Year 9 in England) · 16 questions · Common Core: 8.EE.A.3, 8.EE.A.4 · England: KS3 Number, GCSE Foundation Number, GCSE Higher Number
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Question 1
Work out (2.1 × 10⁴) × (2 × 10²). Type the answer as an ordinary number.
Answer
Question 2
Write 57 000 000 in scientific notation (standard form).
- A. 5.7 × 10⁶
- B. 57 × 10⁶
- C. 5.7 × 10⁷
- D. 5.7 × 10⁻⁷
Question 3
Write 7.7 × 10² as an ordinary number.
Answer
Question 4
Work out (3.1 × 10²) × (3 × 10¹). Type the answer as an ordinary number.
Answer
Question 5
Write 0.00023 in scientific notation (standard form).
- A. 2.3 × 10⁻⁵
- B. 23 × 10⁻⁵
- C. 2.3 × 10⁻⁴
- D. 2.3 × 10⁻³
Question 6
Write 3.8 × 10⁻¹ as an ordinary number.
Answer
Question 7
Work out (3.9 × 10⁵) × (5 × 10²). Type the answer as an ordinary number.
Answer
Question 8
Write 190 000 000 in scientific notation (standard form).
- A. 19 × 10⁷
- B. 1.9 × 10⁸
- C. 1.9 × 10⁹
- D. 1.9 × 10⁻⁸
Question 9
Write 3.8 × 10⁻² as an ordinary number.
Answer
Question 10
Work out (1.6 × 10⁴) × (6 × 10³). Type the answer as an ordinary number.
Answer
Question 11
Write 80 000 000 in scientific notation (standard form).
- A. 8 × 10⁸
- B. 8 × 10⁷
- C. 80 × 10⁶
- D. 8 × 10⁶
Question 12
Write 5.4 × 10⁻¹ as an ordinary number.
Answer
Question 13
Work out (2.7 × 10⁴) × (9 × 10⁴). Type the answer as an ordinary number.
Answer
Question 14
Write 6 100 000 in scientific notation (standard form).
- A. 6.1 × 10⁻⁶
- B. 6.1 × 10⁵
- C. 6.1 × 10⁷
- D. 6.1 × 10⁶
Question 15
Write 9.3 × 10¹ as an ordinary number.
Answer
Question 16
Work out (4.9 × 10⁴) × (6 × 10²). Type the answer as an ordinary number.
Answer
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