# Math Samurai

Watch the video | Français | Deutsch

Math Samurai is an entertaining way for kids to learn and practice four basic arithmetic operations (+, -, *, /). The kid plays a role of a Samurai who needs to fight his or her way through a fun attack of math questions. If you are a parent or teacher, using Math Samurai may help you get kids interested in learning and practicing basic addition, subtraction, multiplication and division.

**Playing Instructions:**

The player needs to solve mathematical equations by correctly using one of four math operators. This is accomplished by “finger-slicing” the screen in a “samurai style”.

Gestures:

The following bi-directional samurai slicing gestures are used by the player:

“+” plus = vertical swipe from top to bottom of the screen: |

“-“ minus = horizontal swipe across the screen: –

“*” multiply = swipe from upper left corner to the lower right corner: \

“/” divide = swipe from upper right corner to the lower left corner: /

Timing:

There is no time limit, but you are given only 4 swords and one of them breaks each time it hits the wrong answer.

Help:

At any point in game you can use the “Help Bar” (bottom of the screen) to find an appropriate gesture.

**Scoring and Awards (Samurai Stars):**

One point is awarded for each correct answer, green indicators on the top of the screen help with the progress tracking.

Upon receiving 50 points the user advances to the next level and earns a Samurai Star. The game starts at level one where the player has to slice his way through 50 questions using numbers from zero to nine. Progressing to the next level expands the number range used for questions therefore making it harder to conquer (e.g., the second level uses numbers from one to twenty).

Incorrect Answer:

One point is subtracted for each incorrect answer and one “sword” (life) is lost.

Red indicators at the top of the screen appear and one green sword disappears.

When all swords are lost, the game is over and can be replayed by pressing on the green “play” button in the middle of the screen.

Extra points:

Up to 3 additional points can be earned by slicing falling “numbers” before they reach the bottom of the screen. Each “number” that breaks into pieces is worth one point.

Levels:

There are 10 levels in the game which are represented by 9 stars.

Each level includes all previous levels plus another ten numbers.

Level 1: 1 – 10 – 0 stars

Level 3: 1 – 30 – 2 stars

Level 4: 0 – 40 – 3 stars

Level 4: 0 – 50 – 4 stars

Level 6: 0 – 60 – 5 stars

Level 7: 0 – 70 – 6 stars

Level 8: 0 – 80 – 7 stars

Level 9: 0 – 90 – 8 stars

Level 10: 0 – 100 – 9 stars

**A Note on the Mechanics:**

Algorithm:

The algorithm used in the game generates all “questions” on the fly, therefore game is different each time it is played. The algorithm is also able to accept multiple answers when needed; for example 2 + 2 = 4 and 2 * 2 = 4.

Numbers and colors:

The number coloring schema is chosen randomly and number colors vary from play to play – this prevents the player from associating certain color combinations with possible answers.

**Credits and Copyright:**

Music by dikidu.com

Graphic Design by Ko Kawazoe

© edin.us