Lesson T1.2.4
T1.2.4 Standard form Quiz: KS3 Maths, Unit 1
20 questions
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Lesson T1.2.4, Standard form: 20 multiple choice questions for the KS3 Maths (National Curriculum), Unit 1: Number, written with Revision Ninja.
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The 20 questions
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Write 4 500 000 in standard form.
- 0.45 × 10⁷
- 45 × 10⁵
- 4.5 × 10⁵
- 4.5 × 10⁶
-
Write 0.000036 in standard form.
- 3.6 × 10⁵
- 3.6 × 10⁻⁵
- 36 × 10⁻⁶
- 0.36 × 10⁻⁴
-
Write 2.3 × 10⁴ as an ordinary number.
- 0.00023
- 230 000
- 23 000
- 2 300
-
Which number is written in standard form?
- 7.2 × 10³
- 0.72 × 10⁴
- 72 × 10²
- 7.2 × 103
-
Calculate (3 × 10⁴) × (2 × 10³). Give the answer in standard form.
- 6 × 10¹²
- 6 × 10⁷
- 5 × 10⁷
- 6 × 10¹
-
Calculate (8 × 10⁶) ÷ (2 × 10²). Give the answer in standard form.
- 4 × 10⁴
- 6 × 10⁴
- 4 × 10³
- 4 × 10⁸
-
Which of these is the largest?
- 3.2 × 10⁴
- 2.9 × 10⁵
- 4.1 × 10³
- 9 × 10²
-
The Sun is about 1.5 × 10⁸ km away from Earth. Which ordinary number is this?
- 150 000 000 km
- 1 500 000 000 km
- 1 500 000 km
- 15 000 000 km
-
Which of these is NOT written in standard form?
- 12 × 10⁴
- 1.2 × 10⁴
- 5.0 × 10⁻³
- 9.9 × 10⁰
-
Calculate (4 × 10⁵) + (2 × 10⁴). Give the answer in standard form.
- 4.2 × 10⁴
- 6 × 10⁵
- 4.2 × 10⁵
- 6 × 10⁹
-
How many times larger is 5 × 10⁶ than 5 × 10³?
- 1000
- 100
- 1 000 000
- 10 000
-
Write 0.0072 in standard form.
- 7.2 × 10³
- 0.72 × 10⁻²
- 7.2 × 10⁻³
- 72 × 10⁻⁴
-
A micrometre is 10⁻⁶ m. A bacterium is 2 × 10⁻⁶ m long. How many micrometres is that?
- 20 µm
- 2 µm
- 2000 µm
- 0.2 µm
-
Write 6.4 × 10⁻² as an ordinary number.
- 640
- 6.400
- 0.0064
- 0.064
-
Which calculation gives 1.2 × 10⁵?
- (3 × 10²) × (4 × 10²)
- (3 × 10²) + (4 × 10²)
- (3 × 10³) × (4 × 10⁻²)
- (3 × 10²) × (4 × 10³)
-
Light travels about 3 × 10⁵ km each second. How far does it travel in 100 seconds?
- 3 × 10⁵ km
- 3 × 10⁶ km
- 3 × 10⁷ km
- 3 × 10⁹ km
-
Which is larger: 6 × 10⁻³ or 5 × 10⁻²?
- They are equal
- 6 × 10⁻⁴
- 5 × 10⁻²
- 6 × 10⁻³
-
A calculator shows 3.4E+5. What is this number as an ordinary number?
- 340 000
- 34 000
- 3 004 000
- 3 400 000
-
Calculate (2.4 × 10⁶) ÷ (6 × 10⁻²). Give the answer in standard form.
- 4 × 10⁷
- 0.4 × 10⁸
- 4 × 10⁴
- 4 × 10⁵
-
Write (3 × 10⁵)² in standard form.
- 6 × 10¹⁰
- 3 × 10¹⁰
- 9 × 10⁵
- 9 × 10¹⁰
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