Showing posts with label 8th grade. Show all posts
Showing posts with label 8th grade. Show all posts

Wednesday, August 25, 2010

6th - 8th grade

Last year the Vikings had a 12-4 record. The Twins play 162 games per season. If they have the same winning percentage as the Vikings, how many games will they win?

Tuesday, August 24, 2010

5th - 12th grade

Continue the pattern
1, 2, 10, 11, 12, 20, 21, 22, 100, 101, ...

6th - 8th grade

Megan's summer job pays either minimum wage ($7.25 per hour) or 20% commission on what she sells. If megan works for 8 hours and sells $450 worth of stuff, should she be paid minimum wage or commission?

Bonus: If she takes the commission, what is the equivalent hourly rate?

Double Bonus: If she takes the hourly wage what is the equivalent percent commission?

Tuesday, September 8, 2009

5th - 8th grade

Bill has 7 students in his basketball team. Only 5 can play at once. How many different groups of 5 students can have on the court at a time?

Hint: it's easier to think of the reverse of this questions - how many different groups of 2 students can sit on the bench.

Monday, August 10, 2009

7th - 10th grade

An iphone screen is 3.5" measured diagonally at a ratio of 3:2. Jennie's TV is 31.5" measured diagonally and at a ratio of 16:9. How many iphone screens would it take to make a picture the size of Jennie's TV?

4th - 12th grade

Count the rectangles.

Thursday, April 16, 2009

4th - 8th grade

7 █ =2 █ + 7Δ

Find values for █ and Δ

4th - 8th grade

█ + █ + █ + █ + Δ = Δ + Δ + Δ + Δ

Find values for █ and Δ

Wednesday, April 15, 2009

4th - 8th grade

█ + █ + █ + Δ = Δ + Δ + Δ

Find values for █ and Δ

6th - 10th grade

Vani Dug a hole 3 feet deep, 2 feet wide, and 4 feet long. How much dirt is in her hole?

8th - 9th grade

John has $5 more than Bill.
Greg has twice as much as John.
Together they have $87.

How much money does each person have?

4th - 10th grade

Christina has two jars of marbles. The red jar has 100 red marbles. The blue jar has 100 blue marbles. Christina takes 20 marbles from the red jar and stirs them into the blue jar. Then she takes 20 marbles from the blue jar and stirs them into the red jar. Which jar has the most marbles of the opposite color?

5th - 9th grade

n*n = 4

What are the two solutions for n?

5th - 9th grade

n*n = n+n

What two numbers could n be?

Wednesday, March 18, 2009

8th grade

___ ÷ 7/4 + 3/5 = -3 1/3

Wednesday, February 18, 2009

5th - 8th grade

Christina scored an average of 76 on her first 4 tests. She wants to get an A- Average on her tests. What grade must she core on the 5th test to increase her average to 90 so that she can earn an A-?

Thursday, February 12, 2009

5th - 9th grade

How many 3-digit numbers are palindromes - the same when read forward or backwards like 828?

Tuesday, February 10, 2009

3rd - 8th grade

Find the sum of all the numbers between 0 and 100 that are spelled with the letter "v".

8th - 11th grade

If you continue the pattern

1/8, 1/4, 1/2, 1/1, 1/0.5, 1/0.25, ...

forever, what is the value of the final term?

Tuesday, January 20, 2009

7th - 11th grade

In Deal or no Deal 1 case is worth $1 Million. The other cases are not. The player selects a case, then begins to open the other cases. After 18 cases have been opened and found to not have the $1 Million, there are two cases left. The player then has a chance to switch cases. Should the player switch cases?


Hint: What is the probability the $1 million is in the original case, and what is the probability that it is in the other case? They're not the same!