Question

and b, a 1.3.2 Closure under Subtraction What happens when we subtract an integer from another integer? Can we say that their difference is also an integer? Observe the following table and complete it: Statement Observation (i) 17-(-21) =
(iii) (-8)-(-14) =
(iv) (-21)-(-10) =
(v) 32-(-17) =
(vi) (-18)-(-18) =
(vii) (-29) - 0=
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Answer 1

(2) 17 + 21 = 38.

(3) -8 + 14 = +6

(4) -21 +10 = -11.

(5) 32 + 17 = 49

(6) -18 + 18 = 0

(7)-29 - 0 = -29

Here all the results are integers.

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