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Their examples setup a ratio with an unknown Hint Take the problem in the other way.
Using common sense, estimate an answer and see if you come close to what you expected.
If the answer seems absurdly large or too small, search through the problem to find where you went wrong.
In the example, you know by adding up all the numbers for the sisters that you have a maximum of 23 socks.
Since the problem mentions that the little sister lost two pairs, the final answer must be less than 23.
Exponents and roots come first, then multiplication and division, and finally addition and subtraction.
Check if your answer makes sense with what you know.
Each word problem may require a different format, but a visual representation of the necessary information makes it easier to work with.
In the example, the question asks how many socks the sisters own together, so you can disregard the information about Mark. This eliminates much of the information and leaves you with only the total number of socks that the sisters started with and how many the little sister lost. For example, the words and phrases "sum," "more than," "increased" and "in addition to" all mean to add, so write in the " " symbol over these words.
Begin by determining the scenario the problem wants you to solve. Either way, the word problem provides you with all the information you need to solve it.
Once you identify the problem, you can determine the unit of measurement for the final answer.