Multiplications
Single Digit * Double Digits / Single Digits * Triple Digits Double Digits * Double Digits/Triple Digits * Triple
In this level you will be learning the fifth sets of formulas for ‘Combination Add Order’ for add six to add nine will be thought to you, and you will be doing single digits addition and subtraction sums based on the formula.
The sixth sets of formulas for ‘Combination Less Order’ for less six to less nine will be thought to you, and you will be doing single digits addition and subtraction sums based on the formula. The ‘Mental Arithmetic’ technique will be continued by which you can do sums calculations mentally without using physical abacus.
Abacus Maths Level FourCourse Content
- Speed writing
- Combination add order (+6 to +9) formulas.
- Combination less order (-6 to -9) formulas.
- Single digit addition and subtraction sums based on formulas.
- Single digit mental arithmetic sums based on formulas.