Browse Standard form

53 questions at your level

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Writing numbers in standard form

14 questions

LessonNot started
(a) Write 45 000 000 in standard form.

(b) Write 0.00062 in standard form.

(c) Write 3.08×1053.08 \times 10^5 as an ordinary number.
●●●●●Level 33 marksStart
Write these numbers in order of size, starting with the smallest:

9.8×1031.2×1054.5×1042.1×1039.8 \times 10^3 \qquad 1.2 \times 10^5 \qquad 4.5 \times 10^4 \qquad 2.1 \times 10^3
●●●●●Level 32 marksStart
(a) Write 7 200 0007\,200\,000 in standard form.

(b) Write 0.0000580.000058 in standard form.
●●●●●Level 32 marksStart
(a) Write 6.04×10−36.04 \times 10^{-3} as an ordinary number.

(b) Write 2.5×1042.5 \times 10^4 as an ordinary number.
●●●●●Level 32 marksStart

Calculating in standard form

20 questions

LessonNot started
Work out (3×104)×(2×105)(3 \times 10^4) \times (2 \times 10^5). Give your answer in standard form.
●●●●●Level 32 marksStart
Work out (2×103)×(4×106)(2 \times 10^3) \times (4 \times 10^6). Give your answer in standard form.
●●●●●Level 32 marksStart
(a) Work out (4.8×105)÷(1.2×10−2)(4.8 \times 10^5) \div (1.2 \times 10^{-2})

Give your answer in standard form. (2 marks)
(b) Work out (3×104)+(4×103)(3 \times 10^4) + (4 \times 10^3)

Give your answer in standard form. (1 mark)
●●●●●Level 33 marksStart
Work out 4.6×105+7.9×1034.6 \times 10^{5} + 7.9 \times 10^{3}

Give your answer in standard form.

(3 marks)
●●●●●Level 33 marksStart

Standard form in context

19 questions

LessonNot started
The mass of a hydrogen atom is 1.67×10−271.67 \times 10^{-27} kg.

(a) Work out the number of hydrogen atoms in 11 gram of hydrogen. Give your answer in standard form correct to 3 significant figures. [3]

(b) Write your answer to part (a) correct to 1 significant figure. [1]
●●●●●Level 34 marksStart