Answered

5 Mr. Greene prepares 28 bags of glass tiles for his art class. He puts 40 glass

tiles in each bag. How many glass tiles does Mr. Greene

use? Estimate to

check that your answer is reasonable. Show your work.

40

Estimated:

Verified Answer :

Final answer:

Mr. Greene uses a total of 1120 glass tiles by multiplying 28 bags by 40 tiles per bag. Estimating by rounding gives 1200 tiles, which is close to the actual total, confirming the answer's reasonableness.


Explanation:

Calculating the Total Number of Glass Tiles


To find out how many glass tiles Mr. Greene uses, we will multiply the number of bags by the number of tiles in each bag.



  1. Number of bags: 28

  2. Number of tiles per bag: 40


The calculation is:


28 bags × 40 tiles/bag = 1120 tiles


Thus, Mr. Greene uses a total of 1120 glass tiles.


Estimate to Check Reasonableness


We can estimate the total by rounding the numbers. Rounding 28 to 30 and keeping 40 the same gives us:


30 bags × 40 tiles/bag = 1200 tiles


This estimated total of 1200 tiles is close to our actual calculation of 1120 tiles, confirming that our answer is reasonable.


Learn more about total number of glass tiles here:

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