Making 100
Math Concepts
Addition- single digit to double digit, place value
Materials
Paper and pencil, die or playing cards
Players
1 to the whole class
Set up
Each player has a sheet of paper with 7 rows and 3 columns. The columns are titled “10’s,” “1’s,” and “Running Total.”
Play
Each player’s running total starts at 0. Roll a die, or pick a random numbered playing card from 1 to 9, to create a digit to be used by all players. Each player chooses to use this number in their 1’s or 10’s column for the current row. For example, if it is a 4, each player chooses whether this will become 4 or 40. The chosen number is added to the running total.
Goal
A player that goes over the target of 100 “goes bust” and loses. If no player goes bust, the one closest to 100 wins.
Discussion and Tips
Discuss examples of how to deal with being too close or too far from the target number.
Variations
There are many options for this game:
- Use a different target number– much smaller for younger children.
- Use fewer or more rows.
- Don’t go bust if you go over the target. The closest player on either side wins.
- Use a fourth column of 100’s to practice 3-digit numbers.
- Practice subtraction by starting at the target number and subtract down to 0.