Problem 1
Sir Godfrey has been collecting gemstones for 3 years. His favorite gems are rubies. Out of his 233 gems, 75 are rubies. How many gems does he have that are not rubies, if there are 3 other types of gemstones?
Step 1
What does the problem ask you to find?
A. Number of gems he has that are not rubies.
B. Number of gems he has that are rubies.
C. The number of gems he collects each year.
D. Number of other types of gems that he owns.
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Step 2 What information is needed to solve the problem?
A. Number of rubies
B. Number of years
C. Number of gems that are not rubies
D. Total number of gems he owns
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Step 3 Select the correct expression.
A. 233 - (75 + 3)
B. 233 - 75
C. 233 + 75
D. 75 - 233
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Step 4. Select the correct solution.
A. 258 gems
B. 75 gems
C. 158 gems
D. 168 gems
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