To play online press the screenshot above and then the start button.

# Interactive algebraic systems with money.

 "Math Money" is a free online game to study and solve popular algebraic equation systems with banknote pictures. Find the missing number in the last line of the combinational money equations. Fun educational game, suitable for online lessons, interactive classes and exciting homeworks. Free online game. Fun educational math game. The Math Knowledge Board include 3 mathematical frustration puzzles with money to solve. The game is part of the Interactive Math School educational tools. Fun math quiz for all ages. Test for the smartest.

This math class include the following combination systems:
• Combination 1:
• Dollar + Dollar + Dollar = 66
• Dollar + Euro + Euro = 82
• Pound + Pound + Euro = 72
• Dollar + Euro + Pound = ?
• Combination 2:
• Yen + Yen + Yen = 36
• Yen + Yuan + Yuan = 22
• Rupee + Rupee + Yuan = 19
• Yen + Yuan + Rupee = ?
• Combination 3:
• Ruble + Ruble + Ruble = 42
• Ruble + Lev + Lev = 20
• Lira+ Lira+ Lev = 40
• Ruble + Lev + Lira= ?
Program code by Ogo Bob. Pictures by pixabay.com.

## How to play Math Money.

 You get 4 combinational lines of popular money bills and the sum of the first 3 lines is shown on the picture. Your task is to solve the last line, where you need to do simple addition, division, multiplication or subtraction. When you are done, enter your answer in the imput field with the question mark and press Enter. You must solve all 3 mathematical frustration puzzles to win the game and get a Knowledge Level.

Knowledge Achievements:
Master popular system equations and get +1 Knowledge Level.
Difficulty: Hard.

### Class subject: Math equations with 3 unknowns.

 This is another example of combination system equation with overall 3 unknown values that have been very popular lately. To solve it we need simple math and logic skills. The first line usually consist of 3 same banknotes. So we need to divide the number at the end of the equation by 3 to find the value of the first banknote. The second line include always one of the first banknotes and another two same banknotes. So we subtract the value of the first banknote from the number at the end of the equation and then divide the result by 2. Now we have the value of the second banknote. The third line include one banknote from the second line and again two new banknotes, but in different order. Then again we subtract the the value of the second banknote and devide the result by 2. When we have the values of all 3 bills, the last fourth line is to add them to one another by simple addition and find the missing number. This app include the following banknotes: US Dollar, EU Euro, GB Pound, Japanese Yen, Chinese Yuan, India Rupee, Russian Ruble, Bulgarian Lev, Turkish Lira.