To get from a "starting
number" to 10,000 or as close as possible by using each of the
four operations--addition, subtraction, multiplication, and
Form a starting
number. Pick any number from 1 to 12. Cube it. Example:
Pick 5. Cube it: 5*5*5 = 125.
125 is the starting number.
Enter the starting
number in your calculator.
Pick a number.
Add, subtract, multiply, or divide it with your starting number. Example:
Pick 100. Multiply it with your starting number.
125*100 = 12,500.
Pick a different
number. Add, subtract, multiply, or divide it with your result in Step
3. Use a different operation from the one in Step 3. Example:
Pick 2. Divide the result in Step 3 by 2.
12,500/2 = 6250.
Continue to pick
numbers and do operations until you have used each of the 4 operations
once. You can do the operations in any order, but do each operation
only once. You must pick a different number for each operation.
Before you start, decide
whether to choose numbers to add, subtract, multiply, and divide from Level 1 or
Level 2. (Level 2 is harder.)
Level 1: any number
Level 2: only numbers from 2 to 100
For each game, record what you did.
A sample is shown to the right.
- 3000 = 3250
+ 6900 = 10,150
Two Player Game:
Players choose the level
and the number of rounds in a game before the start of the game. To begin
each round: One player chooses the starting number; the other player
enters it in the calculator and tries to get as close to 10,000 as
possible. Then the players switch roles to finish the round.
Find the difference between your final result and 10,000 for each round.
At the end of the game, find your total score. The player with the lower
total score wins the game.