Here are two diagrams. One represents 2+5=7. The other represents 4\sdot3=12. Which is which? Label the length of each diagram.
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Question 1
1.
Which equation does this diagram represent and what is the length of the diagram?
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Question 2
2.
Which equation does this diagram represent and what is the length of the diagram?
1.2: Match Equations and Tape Diagrams
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Question 3
3.
Here are two tape diagrams. Match each equation to one of the tape diagrams.
4+x=12
12\div4=x
4 \sdot x=12
12 = 4 + x
12 - x = 4
12 = 4 \sdot x
12 - 4 = x
x = 12 - 4
x + x + x + x = 12
1.3: Draw Diagrams for Equations
For each equation, draw a diagram and find the value of the unknown that makes the equation true.
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Question 4
4.
18 = 3 +x
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Question 5
5.
18 = 3 \sdot y
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Question 6
6.
You are walking down a road, seeking treasure. The road branches off into three paths. A guard stands in each path. You know that only one of the guards is telling the truth, and the other two are lying. Here is what they say:
Guard 1: The treasure lies down this path.
Guard 2: No treasure lies down this path; seek elsewhere.