Problem 9 The peasants had to dig
a trench 3 feet side to side and 10 times as long. It took them 4
days to dig it. There were 7 of them digging. How long was the
trench?
Step 1 What does the problem ask you to find?
A. How long was the trench?
B. How many peasants were working?
C. How fast were they digging?
D. How many feet deep was it?
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Step 2 What information is needed to solve the problem?
A. The width of the trench.
B. The number of days they dug.
C. The relationship of the width to the length.
D. The depth of the trench.
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Step 3 Select the correct expression.
A. 10 ¸ 3
B. 3 + 7
C. 3 X 10
D. 10 - 4
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Step 4. Select the correct solution.
A. 30
B. 9
C. 13
D. 7
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