Yes, that calculation is correct.
To multiply the decimals 0.003 and 0.015, you can follow these steps:
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Ignore the decimal points and multiply the numbers as if they were whole numbers: \[ 3 \times 15 = 45 \]
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Count the total number of decimal places in both original numbers:
- 0.003 has 3 decimal places.
- 0.015 has 2 decimal places.
- Total decimal places = 3 + 2 = 5.
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Place the decimal point in the result (45) to reflect the total number of decimal places counted: \[ 0.00045 \]
So, \( 0.003 \times 0.015 = 0.000045 \).