Understand that multiplying a fraction by a whole number means repeated addition or taking a fraction of a total amount.
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Show distance covered in 3 hours by the tortoise.
Repeatedly adding the same fraction is identical to multiplying it.
Hook the student with Aaron and his tortoise's walking speed.
Aaron walks 3 kilometres in 1 hour. How far can he walk in 5 hours?
This is a simple question. We know that to find the total distance, we need to find the product of 5 and 3. We multiply 5 and 3:
Distance covered in 5 hours = km = 15 km.
Distributing 2/3 acre to 5 grandchildren.
A farmer had 5 grandchildren. She distributed acre of land to each of her grandchildren.
How much land in all did she give to her grandchildren?
Cost of 1 1/4 hours of internet time.
1 hour of internet time costs ₹8. We want to know how much hours of internet time will cost.
First, convert the mixed fraction to an improper fraction: hours is equal to hours.
The cost of this duration is calculated by multiplying the fraction by the hourly rate: .
Simplifying this, we get . Dividing this out, the final cost is ₹.
Check for common misconception of multiplying both parts.
What is ?
Calculate milk consumed in a week.
Problem: Tenzin drinks glass of milk every day. How many glasses of milk does he drink in a week (7 days)?
List the known quantities and their units.
How will you combine the numbers?
Write out the math expression with the numbers.
Show the intermediate multiplication step.
State your final result as an improper fraction or mixed number.
Does your answer make physical sense?