Evaluate the following either by direct method or by using a number line:
a 3+(-2)
b) -3+4+(-7)(c) 8-(-2)-3
(d) 7+(-5)+1
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Answer:
a) 3+ (-2) = 1
b) - 3 + 4 + (-7) = - 6
c) 8 - (-2) - 3 = 7
d) 7 + (-5) +1 = 3
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