sakae.plus Apps

# [Practice Exam] Mode This app is similar to official Mentalcalculation exam sponsored by the Japan Chamber of Commerce andIndustry. (Not be reproduce the degree of difficulty by thecombination of numbers) Time limit of 1st - 6th levels of officialMental calculation exam is 12 minutes combinedmultiplication,division and addition/subtraction. But this app itwas distributed to every 4 minutes each subjects. By utilizing lessfree time, I think if you could practice. # [Manual flash mentalcalculation] The following number is displayed when you tap thescreen. It will add or subtract the numbers(^^)/