Math Update and Homework pg. 94 #1,2,4,5

Posted: November 26, 2018

In math today we began exploring multiplication and division of decimal numbers using estimation. 

An example would be 2,73 X 8:  2,73 can be rounded up to 3, so 3 X 8 = 24 gives an estimated product for this multiplication. The important thing for students to understand is that 24 is not the exact answer for this question, but rather an estimation. The actual answer is less than 24, therefore 24 would be an overestimation in this case. 

Homework: page 94 #1,2,4,5

1. Estimate each product or quotient.

2. William paid 29,85$ for 3 tickets to a tower in Calgary. How much did it cost him for 1 ticket to the tower? Estimate the cost. 

4. Estimate the perimeter of each square given the length of one side. 

5. Estimate the length of one side of a square given the total perimeter of the square. 

 

** One thing to note: In English, decimal numbers use a point (ie. 8.56). However in French, a comma is used for decimal numbers (ie. 8,56)