What's 100-cell calculation?
10 random numbers are placed in the first row and in first column.
By calculating two numbers from the top and from the left 100 times, build fast and accurate calculation skill.
You can choose following options in this app.
・The number of cells from 25 or 100.
・1 digit or 2 digits on addition mode.
・1 digit or 2 digits as minuend on subtraction mode.
・Repeat to calculate same numbers, or calculate random numbers each time.
Random numbers are placed in the first row and in the first column on random mode.
Two numbers are given so that the calculation result doesn't be negative on subtraction mode.
The calculation result includes 0.
A chart will appear after your exercise, will present time of excercise and the number of times of your mistakes.
