#RULES
At the beginning of the game two operands appear between 1 and 100.
Select an operator and verify that the result is between 1 and 100, check also if the number is not already appeared (Tap INFO ( i ) to check the numbers left).
If the result is green tap it to continue the game, the result will become one of the operands while the other operand will be assigned at random from the numbers yet to display.
If the result is red (not between 1 and 100, or already displayed) or blank (division with remainder different from zero) the selected operation is not valid.
If the result is not green with none of the operations then SWIPE (《 》) can be useful to reverse the operands (for subtraction and division).
If still get no a green result then DESTROY ( ! ) can be useful to eliminate one of the two operands and to replace it.
Make good use of SWIPE and DESTROY because they are limited to 10 uses.

#COMMANDS
ADDITION ( + )
SUBTRACTION ( − )
MULTIPLICATION ( × )
DIVISION ( ÷ ) the remainder must be zero
SWIPE (《 》) it exchanges the operands
DESTROY ( ! ) it replaces one of the two operands with a new number
INFO ( i ) it displays the status of numbers

#BONUS
Since MULTIPLICATION ( × ) and DIVISION ( ÷ ) are two operations difficult to use, when they are used, an extra bonus of SWIPE (《 》) and DESTROY ( ! ) equal to the smallest number among the operands and the result will be added.