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(iii) 14×7+36÷4+14-12
= 14×7+9+14-12
= 98+9+14-12
= 197+4-12
= 641-12
= 629
(ii) 20+5 of 2÷10÷2×3
= 20+10÷10÷2×3
= 20+10÷5×3
= 20+2×3
= 20+6
= 26
(viii) 36-[18-{14-(15-4÷2×2)}]
= 36-[18-{14-(15-2×2)}]
= 36-[18-{14-(15-4)}]
= 36-[18-{14-11}]
= 36-[18-3]
= 36-15
= 41
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