Tuesday, November 22, 2011

Number of the Day #25

This is how you do number 25 on the Number of the Day booklet.
All percent are out of 100. So, you need to make 2 to 100. If it is hard for you to make 2 to a 100, then follow these steps :

Step 1 : You need to change the the fraction to a decimal. Decimals are always out of 1.

For example,


Remember, whatever you do at the top you have to do at the bottom. Since, 2 divided by 2 is 1, you need to do divide 1 by 2. 1 divided by 2 is 0.5 or 0.50.

Step 2 : Now, you need to change the decimal to a percent. Since percent are out of 100, you need to multiply the bottom number to 100, or something else, if you didn't use the decimal.

For example,




Since I used the decimal, 1 times 100 is 100. Whatever you do at the bottom, you need to do at the top. 0.5 times 100 is 50.

The percent of a 1 and a half is 50%.

Number of the day #20

Write a fraction using the 1000s place as the denominator and the tenths place as the numerator.

How to find #20

First you look at the number of the day and find the 1000s and tenths place.

Next you make a fraction. Use the number in the 1000s place for the number at the bottom of the fraction. Use the number in the tenths place for the number at the top of the fraction.

If the top of the fraction is greater than the bottom it is a improper fraction. If the top is less than the bottom it is a proper fraction.



Number of the day # 24.

Number of the day, # 24.

Draw a picture to represent the answer to number 21.



Number of the day

21. Use any two digits to make an proper fraction:













A link about proper fraction click here

Number of the Day #23

Proper to Decimal


Decimals are always over 1.
Whatever you do at the top you have to do at the bottom.
8 ÷ 8 = 1
1 ÷ 8 = 0.125

Thursday, November 17, 2011

Page146-147 Question4


1.Make a ratio table
2.Put % on the left side and # on the right side
3.Put 100 under the percent sign
4.Put 124 under the number sign
5.Try to complete it using division or multiplication
6.You do exactly the same things on the same side

Question #8

8. How could you mentally find 40% of 180?

- 1) break 180 down to a friendly number. 180 = 100+80
- 2) Divide the % number to 100. 40% Divided by 100 = 0.4
- 3) Then multiply 0.4 to the friendly number 0.4 x 100 = 40
- 4) Divide the rest of the number 180 to 100. 80 Divided by 100 = 0.8
- 5) Multiply the answer to 40. 0.8 x 40 = 32
- 6) Then add 32 to 40. 32 + 40 = 72