Addition up for kids to 1000000

Subtraction for kids up to 1000000

Comparing numbers up to 1000000

Compare two numbers up to 1000000

Compare two differences up to 1000000

Ascending order of three numbers up to 1000000

Descending order of three numbers up to 1000000

Multiplication for kids up to 100

Problem. The sum of three consecutive natural numbers

By learning math, you learn to think.