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184-P3-1

Making Whole Numbers

Use the three number cards below to make two-digit numbers. Find the number of
possible outcomes of two-digit numbers that are smaller than 55.

751
Step 1. What numbers can come in the tens place?

Step 2. What numbers can come in the ones place when the number in the tens
place is 1?

Step 3. What numbers can come in the ones place when the number in the tens
place is 5?

Step 4. What is the number of possible outcomes of whole numbers that are
smaller than 55?
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