How Did We Do?
In a mathematics contest find out how many of your team’s answers were incorrect and how many problems were unanswered.
Author Archive for: corrill
Entries by InterMath
Ordering Chocolate
How many boxes are needed to fill an order for 1256 chocolates?
End Behavior
Examine criteria for producing functions with converging or diverging end behavior.
Trouble Sleeping
Determine when the Johnson triplets will go to sleep at the same time.
Powers of Three
Express a given number as a power of 3.
Reversing Digits
Can you find a two-digit number that gives a particular sum when the original number and the number obtained by reversing its digits are added?
Moving Parabolas
Generalize the effects on the roots and minimum when modifying a coefficient of a function in the form 
One’s Digit
Determine the one’s digit of a large number.
Magic Triangle
Place the digits 1 through 9 in the circles in a very special way.
The End Digits II
What are the last two digits of large power of 7?