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7. \( 56.98 \times 1000 \) 8. \( 24.575 \times 50 \) 9. \( 2.25 \times 25 \)

Ask by Daniel Howell. in the United States
Mar 10,2025

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**7. \( 56.98 \times 1000 = 56980 \)** **8. \( 24.575 \times 50 = 1228.75 \)** **9. \( 2.25 \times 25 = 56.25 \)**

Solution

**7. \( 56.98 \times 1000 \)** Multiplying by 1000 shifts the decimal point three places to the right: \[ 56.98 \times 1000 = 56980 \] --- **8. \( 24.575 \times 50 \)** One method is to recognize that multiplying by 50 is equivalent to multiplying by 100 and then dividing by 2: \[ 24.575 \times 50 = \frac{24.575 \times 100}{2} = \frac{2457.5}{2} = 1228.75 \] --- **9. \( 2.25 \times 25 \)** We can multiply directly: \[ 2.25 \times 25 = 2.25 \times (20 + 5) = (2.25 \times 20) + (2.25 \times 5) \] Calculate each term: \[ 2.25 \times 20 = 45 \quad \text{and} \quad 2.25 \times 5 = 11.25 \] Adding these: \[ 45 + 11.25 = 56.25 \]

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To calculate \( 56.98 \times 1000 \), simply shift the decimal point three places to the right. This gives you \( 56980 \). For \( 24.575 \times 50 \), consider breaking it down: \( 24.575 \times 50 = 24.575 \times (100/2) = (24.575 \times 100) / 2 = 2457.5 / 2 = 1228.75 \). Finally, \( 2.25 \times 25 \) can be calculated as \( 2.25 \times (20 + 5) = (2.25 \times 20) + (2.25 \times 5) = 45 + 11.25 = 56.25 \).

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