How do you calculate things without a calculator? I was a math major and believe it or not I have a lot of trouble making calculations in my head or on paper, and it slows me down considerably.
On the mcgraw hill practice test CD, this was the second quant problem- very easy with a calculator, but time consuming and annoying and frustrating without:
Mr Garcia, the losing candidate in a two-party election, received 43,400 votes, which was 35% of the total votes cast. How many more of the total votes cast would Mr. Garcia have had to receive in order to win at least 50% of the vote?
A.18,600
B.24,800
C.35,500
D.62,000
E.124,000
This is easier when I use 1/3 instead of 35%, and 43,400/(1/3) = 130,200. 130,200/2 = 65,100. 65,100-43400=21,700, which is closest to A. Is this how we are supposed to do it?
Are there any tricks for how to multiply or divide large and weird numbers? There was another problem where I needed to divide 510 by 17. How do you do this? Long division? I feel so slow doing that. HELP
Thanks!
RAD
On the mcgraw hill practice test CD, this was the second quant problem- very easy with a calculator, but time consuming and annoying and frustrating without:
Mr Garcia, the losing candidate in a two-party election, received 43,400 votes, which was 35% of the total votes cast. How many more of the total votes cast would Mr. Garcia have had to receive in order to win at least 50% of the vote?
A.18,600
B.24,800
C.35,500
D.62,000
E.124,000
This is easier when I use 1/3 instead of 35%, and 43,400/(1/3) = 130,200. 130,200/2 = 65,100. 65,100-43400=21,700, which is closest to A. Is this how we are supposed to do it?
Are there any tricks for how to multiply or divide large and weird numbers? There was another problem where I needed to divide 510 by 17. How do you do this? Long division? I feel so slow doing that. HELP
Thanks!
RAD
