4 different concepts I can think of.
Take away: I had 8 and lost 3. 8-3 is 5
Comparison: Joe has 8 and I have 3. How many more does Joe have 8-3 is 5
Distance (this one is my favorite): Joe is 8 miles east of the house. I am 3 miles east. What is the distance between us? 8-3 is 5
Missing amount. I have 3 and I need 8. How many more do I need 8-3 is 5
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who invented subtraction?
read the value A,b store the result of subtraction of a,b in continer subtraction display subtraction
the subtraction sign
Yes because they must all have the same denominator and this is found by working out their lowest common denominator.
The result of a mathematical subtraction is the difference.