Mental arithmetic exercises class 4 - practise mental arithmetic online

Mental arithmetic class 4 - we practise on this page: 

• Addition of numbers 
• Subtraction of numbers 
• divide simple numbers
• Double or multiply numbers

Examples:

Even if the tasks look easy at the beginning, always look carefully.

65 + 45 = 110

65 + 35 = 100

You can print out a worksheet for all the online mental arithmetic exercises!