The concept of SEED NUMBERS has to be learned before you learn how to CHECK YOUR ANSWERS without redoing the problem.
When can I use this method?
This is a concept used for Checking Addition, Subtraction, Multiplication & Division
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Notes –
- All numbers have a seed number
- Use the seed number to verify your answer
Related Shortcuts –
Checking Division : (Check) Div
Checking Multiplication : (Check) Mul
Checking Subtraction : (Check) Sub
Checking Addition : (Check) Add
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