Friday, December 26, 2014

November 2013: Snow White, Happy Days, and Bingo

(from November 20, 2013)

"Binary Bingo"

Visit the mathplane comic archives

(from November 26, 2013)

"Repeating decimal subtraction"

One minute math question:

Solution and more math stuff in the spare parts section

(from November 22, 2013)

"Happy Days"

The Fonz learns Calculus!

(from November 14, 2013)

"Snow White and the 7 Dwarf"

'Counting 7's'
1) If you listed all the whole numbers between 1 and 1000, how many 7's would appear in the list?
2) How many integers between 1 and 1000 contain at least one 7?


(from November 7, 2013)

"Study Habits"

Academic influences from Angel and Devil...

(from November 1, 2013)

"Leftover Halloween Candy"

AFTER a 30% discount, a bag of Halloween Candy costs $10.
What was the ORIGINAL price of the candy?

The answer is here 



Tuesday, December 23, 2014

October 2013: Insomnia, The Infinite Monkey Theorem, Identity Theft, The National Debt, and Elm Street

(from October 30, 2013)

"Freddy Krueger's Math"

Happy Halloween!!

(from October 27, 2013)

"Hoops Percentage"

After 100 free throw attempts, my shooting percentage is 70%.
How many shots in a row would I have to make to increase my percentage to OVER 80%?

How many shots in a row would I have to miss to decrease my percentage to UNDER 60%?

Solutions and more math questions at

(from October 23, 2013)

"Broken Math"

National Debt Limit is not 17 trillion. It does not exist!

(from October 21, 2013)

"Three Easy Questions"

1) What is 1 divided by one-half?
2) On a number line, what is the midpoint between 1/3 and 1/5?

3) You and 5 friends go on a $1500 vacation. How much is the cost per person?

The Solution and more math topics in the spare parts section at

(from October 17, 2013)

"Identity Matrix"

Find more math cartoons at

(from October 12, 2013)

Answer and more geometry questions

(from October 10, 2013)

"Infinite Monkey Theorem"

"If 1000 monkeys, using 1000 graphing calculators, randomly hit keys for an infinite amount of time, then it will most surely produce the desired scatterplot".

(from October 3, 2013)

"Counting Sheep"

How mathematicians fall asleep....

Monday, December 22, 2014

September 2013: Football betting, Eye Chart, NASCAR, and Password

(from September 30, 2013)

"Radical Pythagorean Theorem"

'One minute math question':  What is the length of x?

Solution is in the spare parts section at

(from September 26, 2013)

"Super Natural Number"

Password and contestant's 6th sense...

(from September 24, 2013)

"Finding the minimum in a quadratic"

For the function f(x) = 9(x - 8)(x - 2),

what is the minimum output?


(from September 19, 2013)

"Accelerated Math"

Driven Students at NASCAR

(from September 13, 2013)

"Family Eunion"

Find more math comics at

Or, follow at Facebook, Google+, or Pinterest

(from September 10, 2013)

"Sequences containing variables"

Can you solve these 2 questions involving progressions (sequences) with variables?

1) For some real number t, the first 3 terms of an arithmetic sequence are 3t, 4t + 2, and 7t - 4. What is the numerical value of the 4th term?

2) For some positive real number b, the first 3 terms of a geometric progression (sequence) are b - 1, b + 4, and 3b + 2. What is the numerical value of the 4th term?


(from September 5, 2013)

"Negated Football Logic"

Are you ready for some football!?!!