How many

How manySolve some computational problems and do training the brain?It's a simple brain train that calculates by looking at the picture in problems.
Look at the problem on the screen.(1)calculate only the specified image?(2)calculate all the images?Compute according to the instructions.
Types of mental arithmetic(1)Plus(2)Minus(3)Multiplicationselect any check on the screen(check box).
Multiplication is able to selectTypes of mental arithmetic(1)Calculation of one digit(2)Calculations involving 1 digit and 2 digit combination(3)Calculations involving combinations of two digitsYou can choose 3 types.
It display Setting above the help screen.Set the type of mental arithmetic with whether or not the check box is checked.
When you tap the display of the type of "blue multiplication", the list to be selected is displayed, so please choose whatever you like.
Please check one kind of mental arithmetic type.The type of "multiplication" is not reflected unless you check the multiplication by the type of mental arithmetic.
Please download "How many" application.
[URL]http://app.s17.xrea.com/
by Katsuyuki Hori