*Check if your answer makes sense with what you know.Using common sense, estimate an answer and see if you come close to what you expected.The interest earned on the 00 investment is , and the interest earned on the 00 investment is .*

Since the problem mentions that the little sister lost two pairs, the final answer must be less than 23.

If you get a higher number, you did something wrong.

The total pairs of socks owned by both sisters is 8 6 9.

Subtract the two missing pairs for a final equation of (8 6 9) - 2 = n, where n is the number of pairs of socks the sisters have left.

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.Once you identify the problem, you can determine the unit of measurement for the final answer.In the following example, the question asks you to determine the total number of socks between the two sisters.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.Use a letter for the unknown variable, and create an algebraic equation that represents the problem.You can figure out Two planes, which are 2400 miles apart, fly toward each other. At the end of one interest period, the interest earned was . The interest rate for the 00 investment is greater than the interest rate for the 00 investment. Let x be the interest rate for the 00 investment.Then the interest rate for the 00 investment is .While the degree of difficulty may change, the way to solve word problems involves a planned approach that requires identifying the problem, gathering the relevant information, creating the equation, solving and checking your work.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.The unit of measurement for this problem is pairs of socks."Suzy has eight pairs of red socks and six pairs of blue socks. If her little sister owns nine pairs of purple socks and loses two of Suzy's pairs, how many pairs of socks do the sisters have left?

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