Calc BR 4
Calc Basics Rounds Level 4
Addition and subtraction of numbers whose result of addition and subtraction is less than 100
App List
Calc BR 5
Calc Basics Rounds Level 5
(carry) Single-digit and Two-digit addition, (borrow) Single-digit and Two-digit subtraction
Calc BR 6
Calc Basics Rounds Level 6
Addition and subtraction of two digits, Multiplication basics
Calc BR 7
Calc Basics Rounds Level 7
Addition and subtraction of three digits, Multiplication basics