II >> Mixed operations

  • 4.1 Add and subtract numbers up to 20

  • 4.2 Addition and subtraction - ways to make a number - up to 20

  • 4.3 Addition and subtraction word problems - up to 20

  • 4.4 Addition and subtraction - balance equations - up to 20

  • 4.5 Input/output tables - write the rule - up to 20

  • 4.6 Add and subtract numbers up to 100

  • 4.7 Addition and subtraction - ways to make a number - up to 100

  • 4.8 Addition and subtraction word problems - up to 100