Minus-Calculator 與 Plus Minus Math SD 使用情況與統計

STOP! This is the math trainer for children in primary school from grades 3, 4 and 5 and adults. Do you want to get better at mental math or practice automating math operations? Enjoy playing with this fun app. This version includes different types of operations, such as: - Addition (addition problems and plus sums) - Subtraction (minus sums and difference problems) - Multiplication (times tables from 1 to 10 and product problems) - Division (division problems and division sums) Options: - 90 levels - Addition, subtraction, multiplication and division - Multiple choice questions and open questions - Check your input with the result summary This fun game has 90 levels, from easy to difficult. Simple and effective. Try to open all 90 levels!