Start at 15. Hop back 6. ANSWER: 9
Start at 10. Hop back 5. ANSWER: 5
NOTE:
Explain to the student how to use the number line to find the answer to a
subtraction problem. Draw a number line with the student and have the
student use it to find the answers to several subtraction problems.
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Start at 15. Hop back 6. ANSWER: 9
Start at 10. Hop back 5. ANSWER: 5