GCSE (1 – 9) Standard Form Quiz

Standard Form Conversions

• 1.2 × 10^5 is equal to 120,000 as an ordinary number.
• 0.003 in standard form is 3 × 10^-3.
• 42,900,000 in standard form is 4.29 × 10^7.
• 3.61 × 10^-3 as an ordinary number is 0.00361.
• (8.694 × 10^2) ÷ (6.21 × 10^-3) is equal to 1.39 × 10^5.
• 0.21 × 10^6 in standard form is 2.1 × 10^5.

Calculations

• (6.7 × 10^4) × (3.4 × 10^-8) is equal to 0.2288.
• 5.2 × 10^-1 as an ordinary number is 0.52.
• The volume of a sphere with a radius of 6.4 × 10^6 metres is 1.5 × 10^18 m^3.
• The mass of 250 electrons, given that one electron has a mass of 9.1 × 10^-31 grams, is 2.275 × 10^-28 grams.

Simplifying Algebraic Expressions

• 3x + 4x – 2x simplifies to 5x.
• 3m + 3m simplifies to 6m.
• n+n+n simplifies to 3n.
• a ´ b ´ c simplifies to abc.
• 5p – 2p simplifies to 3p.
• 6h 3 (assumed to be 6h^3) simplifies to 6h^3.
• k+k+8 simplifies to 2k + 8.
• 4 ´ 3x simplifies to 12x.
• 7a – 3a + 6a simplifies to 10a.
• 8g + 6h – 3g + h simplifies to 5g + 7h.