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Standard form using calculator

i dont have a calculator
please help me

Standard form using calculator i dont have a calculator please help me-example-1

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Answer:

a) To add (2.7 x 10⁹) and (6.3 × 10⁷) in standard form, we can use a scientific notation calculator or follow the steps below.

  • Factor out one of the powers of ten, such as 10⁹, from both numbers.
  • Add the coefficients, which gives 2.700000674.
  • Multiply the result by the power of ten, which gives 2.7 x 10¹⁰.

Therefore, the sum of (2.7 x 10⁹) and (6.3 × 10⁷) in standard form is 2.7 x 10¹⁰.

b) To subtract (7.4 x 10⁻¹¹) and (5.2 x 10⁻¹²) in standard form, we can use a scientific notation calculator or follow the steps below

  • Divide the smaller number by the larger number, which gives 0.7.
  • Subtract the exponent of the smaller number from the exponent of the larger number, which gives -11.
  • Multiply the result by the power of ten, which gives 6.2 x 10⁻¹².

Therefore, the difference between (7.4 x 10⁻¹¹) and (5.2 x 10⁻¹²) in standard form is 6.2 x 10⁻¹².

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