3rd Grade, Math
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Guided Practice Answer
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Guiding Question
Kim has collected 415 baseball cards. Alicia has collected 117 baseball cards. How many baseball cards do they have together?
Solving the Problem
We can use place value models to solve this problem.
Step 1: State the Problem
To find out how many baseball cards they have together, we need to add. Our problem is:
415 + 117 = ?
Step 2:
Use place value models to represent each number.
415 =
4
hundreds
1
tens
5
ones
117 =
1
hundreds
1
tens
7
ones
Step 3: Add the place value models together.
Together, we have =
5
hundreds
2
tens
12
ones
Step 4: Regroup to Solve the Problem
We can regroup our place value models to
5
hundreds
3
tens
2
ones
So,
415 + 117 = 532
Checking Your Answer
How can subtraction help us check our answer?
Click here to go to Independent Practice.
Home
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