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HKIMO 2019 Grade 1 National Final (Heat) Set 02 Question 8

HKIMO · HKIMO 2019 Grade 1 National Final (Heat) Set 02

Question 8

Find the value of 7 + 9 − 6 + 7 + 9 − 6 + 7 + 9 − 6 + 7 + 9 − 6.