Mathematics Specification A - 4MA1 PearsonEdexcel

Standard Form

Bayani Gaba-gaba

Standard form is a compact way of writing very large or very small numbers. Scientists use it to express quantities like the mass of the Earth or the size of a virus without writing long strings of zeros.

You will learn how to convert between ordinary numbers and standard form, and how to multiply, divide, add and subtract numbers expressed this way, both with and without a calculator.

Manufura

  1. Calculate with and interpret numbers in the form a x 10^n where n is an integer and 1 <= a < 10
  2. [Higher] Solve problems involving standard form

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Takardar Darasi

The distance from the Earth to the Sun is about 150 000 000 km. The width of a human hair is about 0.000 08 m. Writing out all those zeros is slow and error-prone. Standard form fixes this by expressing every number as a value between 1 and 10, multiplied by a power of 10.

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Nazarin Darasi

Barka da kammala darasi akan Standard Form. Yanzu da kuka bincika mahimman ra'ayoyi da ra'ayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.

Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.

Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.

  1. Write 0.000 045 in standard form. A) 4.5 x 10^-4 B) 4.5 x 10^-5 C) 45 x 10^-6 D) 4.5 x 10^5 Answer: B
  2. Calculate (3 x 10^4) x (2 x 10^5). A) 6 x 10^9 B) 6 x 10^20 C) 5 x 10^9 D) 6 x 10^10 Answer: A
  3. Which is the largest? A) 3.2 x 10^5 B) 5.1 x 10^4 C) 9.9 x 10^4 D) 1.1 x 10^5 Answer: A
  4. Write 8.03 x 10^-2 as an ordinary number. A) 803 B) 0.803 C) 0.0803 D) 80.3 Answer: C
  5. What is (6 x 10^8) / (3 x 10^2) in standard form? A) 2 x 10^4 B) 2 x 10^6 C) 2 x 10^10 D) 2 x 10^16 Answer: B

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Kana son yin aikin tambayoyin gwaji kan Standard Form? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.

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