10 NUMBERS = 21 The objective of the game is to use all ten ( 1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
numbers in a group combination (using different combination of math methods) totaling 21.
Each of the 10 numbers must be used and only once in the group combination totaling 21.
LEVEL 1
Use 2 math methods; addition and subtraction
For Example: 1 + 2 + 3 + 4 + 5 + 6 - 7 + 8 + 9 - 10 = 21
When you complete 5 different group combinations totaling 21, advance to level 2.
LEVEL2
Use 3 math methods; addition, subtraction and division
When you complete 5 different group combinations totaling 21, advance to level 3.
LEVEL3
Use 4 math methods; addition, subtraction, division and multiplication
When you complete 5 different group combinations totaling 21, advance to level 4.
LEVEL4
Use 5 math methods; addition, subtraction, division, multiplication and fraction
When you complete 5 different group combinations totaling 21, advance to level 5.
LEVEL5
The fifth level is the master level and the most difficult of all levels.
Use 2 math methods; division and multiplication
When you complete 1 group combination totaling 21, you have mastered level 5!
