Komodo Abacus Advanced
| Category | Price | Seller | Device |
|---|---|---|---|
| Education | $1.99 | TROVARE INC | iPhone, iPad, iPod |
The app comes with Settings screen to enable Timer, Volume, Operation and also choose the difficulty level based on number of digits.
Features:
- 8 columns of beads for iPhone and 13 columns of beads for iPad
- Ability to set the number of decimal places from 0 to 3
- Addition, Subtraction, Multiplication, Division and Mixed Addition/Subtraction problems
- Generates random problems to be solved
- Ability to select from 1 to 5 digits for the generated questions.
- Ability to verify the answer using the Validate button
- Timer support that can be turned ON/OFF
- Additional motion based options for ease of use
-swipe Right to Validate
-swipe Left to Reset the question
-swing to reset the Abacus
- Ability to turn off negative number generations for Subtraction
Example: 4-7 ?
Add 7 in the unit column
Borrow 1 from the 10's column as it is not possible to subtract 7
Subtract 7
This leaves the answer on abacus as 7
The negative answer appears in the form of a complementary number. Read the beads that don't have value answer(sum of beads away from the divider rod) and it is 2
Add 1 to it and the final answer is -3
The app can verify the negative answer by reading the complementary number
- Game/Test mode
The Game/test Mode lets you take a test based on the current settings. The Number of Questions in the settings apply only to the Game mode. Start/Stop the game mode by clicking the Start/Stop button on the Settings screen anytime. The Reset Question Button generates the next problem and when there is no more problem left, it generates the score report.
