Respuesta :
Hi,
The answer you are looking for is 3. This is because when you multiply 3.68 by 42.7 you get, 157.136. So there are 3 numbers after the decimal.
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You can tell how many decimal places will be in the answer by looking at how many decimal places there are in the question.
For example: 3.68 has 2 decimal places, and 42.7 has 1 decimal place, so when you multiply 3.68 by 42.7, there will be 3 decimal places ( 2 + 1 = 3)
Another example: The answer to 2.76 x 13.091 will have 5 decimal places in it - because 2.76 has 2 decimal places, and 13.091 has 3 decimal places - 2 places + 3 places = 5 decimal places.
