Owen's late Scribepost

Today, I was assigned to do questions 3 and 4 on page 142

3.Use mental math to determine the following:
A. 300% of 2000
2000=100% 100 x 3 = 300
2000 x 3 = 6000

B. 1/4% of 60
1% of 60 is 0.6

C. 0.1% of 40
1 divided by 100 = 0.1
1 divide by 40 = 0.025
0.1% og 40 is 0.025
4.
A. 20% of 60
If you divide 100% by 5 you will get 20%.
If you divide 60 by 5 you will get 12.

B. 250% of 400
200% of 400 is 800 because 400 x 2 = 800
50% of 400 is 200 because 400 divided 2 = 200
Then, you just add 200 and 800 togethere to 1000

C. 10 1/2% of 100
1/2% of 100 is 5
10% of 100 is 10
10 + 5 = 15