Math Games

Archive for April, 2009

Question: MATH homework need help?

please help me with my homework..10 point for best answer
1.Mario and Maria each earn $10 and hour at their summer jobs. if mario workds 3 3/4 hours and maria works 1 1/2 hours. How much did they make together??
2.The raiders won 2/5 games over the last two seasons.if they play 40 games in the last two seasons, how many did they win?
3.simplify (8x10^7)x(5x10^6)
4.the area of a circle is 16 pie. what is the diameter of the circle?
5.five people equally share 2/3 of a pizza.as a fraction, what percentage does each person get of the whole pizza?
THANKs!

Answer: 1. 3 3/4 hrs@ $10/hr
=3.75 X 10, =37.50

1 1/2 hrs@10/hr
=1.5 X 10, =15
Total=37.50 + 15.00, =52.50

2.2/5 of 40=2/5 X 40, =16

3.(8x10^7) X (5x10^6)
=8 X 5 X10^7 X 10^6
=40x10^13
=4 X 10^1 X 10^13
=4x10^14

4. Area=(pi)R^2
16(pi)=(pi)R^2
(16)(pi)/(pi)=R^2
4=R
Therefore 8=D, since the diameter is twice the radius

5. The whole pizza is 100%
2/3 is 2/3 X 100, =66.67%
That 66.67% is divided 5 ways
66.67/5=13..33%

Gamin' with Math and my Bro Part 2

Question: Card games with numbers/math?

Are there any actual strategical card games that involve adding/subtracting etc? Most games have you match or go up and down, in my opinion there's no strategy to those games and you don't 'build brain cells with them'. I'm also trying to help a relative practice math. It can be anything you can think of from very easy to very hard. Please state the name of the game and if you can take a minute to find a website, that would be great!
Thanks

Answer: Blackjack

Math Games & Lessons : Math Tricks With Numbers