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Question

Subtract the first rational number from the second in each of the following:
(i) 38, 58
(ii) -79, 49
(iii) -211, -911
(iv) 1113, -413
(v) 14, -38
(vi) -23, 56
(vii) -67, -1314
(viii) -833, -722

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Solution

(i) 58-38=5-38=28=14(ii) 49--79=4-(-7)9=4+79=119(iii) -911--211=(-9)-(-2)11=-9+211=-711(iv) -413-1113=-4-1113=-1513(v) -38-14=-3-28=-58(vi) 56--23=56--46=5-(-4)6=5+46=96=32(vii) -1314--67=-13-(-12)14=-13+1214=-114(viii) -722--833=-2166--1666=(-21)-(-16)66=-21+1666=-566

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