Folders for Sale
Determine how much the manager of a store reduced the price of a folder.
Author Archive for: corrill
Entries by InterMath
Approximate Digit Use
Use the digits 1, 2, 3, 4, 5, 6, 7, and 8 exactly once to make two decimal numbers whose product equals a particular number.
Growing Tree
After four years, how many feet high was a tree that Mrs. Johnson’s class planted?
Missing Hundreds
Determine the sum of all the digits that could replace the digit d in a given number.
Remainders of Three
Find the remainder when a large number is divided by 3.
Johnny’s Rule
A student has “discovered” a rule for subtracting fractions. Does his method always work?
Digital Fractions
Use the digits 0 – 9 to make the fraction 1/3.
Mysterious Numbers
Discover some strange properties about a mysterious number.
Can You Tell?
Multiplying, dividing, and then comparing fractions.
Where is that fraction?
Look for patterns when multiplying fractions.