Question

Please answer

Find a number that is approximately 2.5 times 31,050,200. Write the result as the product of a single digit and a power of 10.

Answer 1

• 8 × 10⁷

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Multiply the two numbers first:

• 2.5 × 31050200 = 77625500

Round the number to the first digit:

• 77625500 ≈ 80000000

Write 80000000 as the product of a single digit and a power of 10:

• 80000000 = 8 × 10000000 = 8 × 10⁷