Find the elapsed time using a number line from 9:30 A.M. to 10:35 A.M.

A math worksheet from iKnowIt.com showing a number line to calculate elapsed time between 9:30 A.M. and 10:35 A.M., with input fields for hours and minutes.

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Show Answer Key & Explanations Step-by-step solution for: Interactive Math Lesson | Elapsed Time

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Let’s solve this step by step.

We are given:
- Start time: 9:30 A.M.
- End time: 10:35 A.M.

We need to find how much time passed between these two times — that’s called “elapsed time.”

Step 1: From 9:30 A.M. to 10:00 A.M. is 30 minutes.
(You can count on the number line: from 9:30 to 10:00 is half an hour.)

Step 2: From 10:00 A.M. to 10:35 A.M. is 35 minutes.

Step 3: Add those together:
30 minutes + 35 minutes = 65 minutes.

But 65 minutes is more than an hour! We know that 60 minutes = 1 hour.

So, 65 minutes = 1 hour and 5 minutes.

That means the elapsed time is 1 hour and 5 minutes.

Final Answer:
1 hour 5 minutes

Parent Tip: Review the logic above to help your child master the concept of elapsed time number line worksheet.

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