Standard Form (Edexcel GCSE Maths): Quizzes

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12 questions from this quiz

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What must the front number AA be in standard form A×10nA \times 10^n?

Between 1 and 10

Which type of power is used for numbers greater than 1?

Positive power

Convert 35,600 to standard form.

3.56×1043.56 \times 10^4

Convert 0.000623 to standard form.

6.23×1056.23 \times 10^{-5}

What is 4.95×1034.95 \times 10^{-3} as an ordinary number?

0.00495

Why is 146.3×105146.3 \times 10^5 incorrect standard form?

146.3 isn't between 1 and 10

Calculate (2.5×104)×(3.2×103)(2.5 \times 10^4) \times (3.2 \times 10^3).

8.0×1078.0 \times 10^7

Calculate (8.4×106)÷(2.1×102)(8.4 \times 10^6) \div (2.1 \times 10^2).

4.0×1044.0 \times 10^4

When multiplying in standard form, what do you do with the powers of 10?

Add them

To add numbers in standard form, what must you do first?

Make powers the same

To enter 2.67×10152.67 \times 10^{15} on a calculator, press:

2.67 EXP 15

For negative powers of 10, which direction does the decimal point move?

Left

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