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# Arithmetic ability - training - test

We are constantly faced with numbers and the need to perform simple mathematical operations in our heads. At home, at work, in the store, or when planning, numbers are everywhere, and the ability to add and subtract often saves time. Of course, it's enough to take a calculator on your phone and find the answer you need, however, this way you deprive yourself of the opportunity to think, and your brain of the opportunity to develop. Adding and subtracting even small numbers helps to strengthen and develop our mental abilities. Here you can train your brain by adding, subtracting, multiplying and dividing small numbers.

Level one - addition of two-digit numbers
Level two - addition of three-digit numbers
Level three - addition of four-digit numbers
• Mental subtraction:

Level one - subtraction of two-digit numbers
Level two - subtraction of three-digit numbers
Level three - subtraction of four-digit numbers
• Mental Multiplication:

Level one - multiplying a number from 2 to 9 by a number from 11 to 19
Level two - multiplying a number from 2 to 9 by a number from 11 to 99
Level three - multiplying a number from 11 to 19 by a number from 11 to 49
Level four - multiplying a number from 11 to 50 by a number from 11 to 50
• Mental Division:

Level one - Dividing by a number from 2 to 9 or by a number from 11 to 19
Level two - Dividing by a number from 2 to 9 or by a number from 11 to 49
Level three - Dividing by a number from 11 to 19 or by a number from 11 to 49
Level four - Dividing by 11 to 49 or 11 to 99