Kids Mathematics - Properties of Subtraction on Whole Numbers:
Property 1=> If a & b are two whole numbers, where a > b or a = b, then a - b is a whole number. If a < b, then a - b cannot be a whole number, but b - a is a whole number.
The above property implies that in the whole number system,, we can subtract a smaller whole number from a bigger whole number or subtract a whole number from the same whole number.
Property 2=>If a & b are two different whole numbers, then a - b # b - a
( The Symbol # is read as not equal) However, if a & b are two equal whole numbers, then clearly a - b = b - a
Property 3=>If a is any whole number, then a - 0 = a, but 0 - a is not a whole number.
The above property implies that if 0 is subtracted from a whole number, then the result is the number itself.
Property 4=> If a , b, c are any three whole numbers such that c# 0, then a - (b - c) # (a - b) - c.
Property 5=> If a , b, c are any three whole numbers such that a - b = c, then b + c = a.
Property 1=> If a & b are two whole numbers, where a > b or a = b, then a - b is a whole number. If a < b, then a - b cannot be a whole number, but b - a is a whole number.
The above property implies that in the whole number system,, we can subtract a smaller whole number from a bigger whole number or subtract a whole number from the same whole number.
Property 2=>If a & b are two different whole numbers, then a - b # b - a
( The Symbol # is read as not equal) However, if a & b are two equal whole numbers, then clearly a - b = b - a
Property 3=>If a is any whole number, then a - 0 = a, but 0 - a is not a whole number.
The above property implies that if 0 is subtracted from a whole number, then the result is the number itself.
Property 4=> If a , b, c are any three whole numbers such that c# 0, then a - (b - c) # (a - b) - c.
Property 5=> If a , b, c are any three whole numbers such that a - b = c, then b + c = a.
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