12. While shopping online, Ji Hun finds a square rug with an area of 11 m2. He needs to know if it will fit in his 4 m × 5 m bedroom.

a) Estimate the side length of the rug, to one decimal place.

b) Check your estimate with a calculator.

c) Will the rug fit? Explain.

ANSWERS:

a.) 3 x 3 = 9

4 x 4 = 16

9 is closer to 11. But in this question, they're looking for side length.

Since the side length of 9 is 3, we'll use 3 for our whole number.

**3. ___**

From Drop Box |

Now, we just need to find out one decimal to replace the blank. To find the answer to that, count the intervals between 9 and 11.

11 - 9 = 2

The estimated answer will be, 3.2 m

b.) By using my calculator, I multiplied 3.2 by itself to check it.

3.2 x 3.2 = 10.24

To find the whole number and one decimal place, use your calculator and find the square root of 11.

11 - 9 = 2

The estimated answer will be, 3.2 m

b.) By using my calculator, I multiplied 3.2 by itself to check it.

3.2 x 3.2 = 10.24

To find the whole number and one decimal place, use your calculator and find the square root of 11.

From Drop Box |

c.) Yes, the rug will fit because the sides of the rug is smaller than the size of his room.

**Here are some links to help you:**

http://www.homeschoolmath.net/teaching/square-root-algorithm.php

**Here are some math gaming sites for you to enjoy:**

Here are some videos for you to see:

PLEASE FEEL FREE TO GIVE SUGGESTIONS OR COMMENTS IF YOU SEE SOME ERRORS. I'LL MAKE CHANGES RIGHT AWAY :)

**HOMEWORK FOR TONIGHT:**

*PAGES: 99 - 100*

*Also do " COMMUNICATE IDEAS" on page 98.*

I tried to do my blog again to make it look understandable so you guys don't have to click each sections.

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