(ii) 12-[7 - {16 - (21 -5
-3)}]
(iii) (7 x 12) =(-1-{-7-2(7-3)}]
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Answered by
2
Answer:
answer is 8 of first question
second question is wrong
Answered by
1
Answer:
(ii). 12-[7-{16-(21-5-3)}]
= 12-[7-{16-(21-8)}]
= 12-[7-{16- 13}]
= 12-[7-3]
= 12- 4
= 8
(iii). (7×12) = [-1-{-7-2(7-3)}]
RHS = [-1-{-7-2×4}]
= [-1-{-7+8}]
= [-1-(1)]
= -1-1
= -2
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