The topics in this unit focus on understanding variables and algebra. Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
Some coins have a total value of $0.78. There are 2 times as many Pennies than Nickels and 2 times as many Nickels than Quarters. How many Pennies are there?
Earned ?