InterviewSolution
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Add without using number line. (i) 10 + (-3) (ii) 10 + (+16) (iii) (-8) + (+8) |
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Answer» i) 10 + (-3) 10 + (-3) = 7 + 3 + (-3) = 7 + (3 + (-3)) = 7 + 3 – 3 = 7 + 0 ∴ 10 + (-3) = +7 ii) -10 + (+16) -10 + (+16) = -10 + 10 + 6 = (-10 + 10) + 6 = 0 + 6 ∴ -10 + (+16) = + 6 iii) (-8) + (+ 8) -8 + (+8) = -8 + 8 = 0 ∴ -8 + (+8) = 0 |
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