True: the HCF of 18 and 27 is 9., the HCF of 32 and 54 is 2., the HCF of 18 and 54 is 18., the HCF of 88 and 72 is 8., the HCF 134 and 55 is not 11., False: the HCF of 99 and 72 is 18., the HCF of 132 and 77 is 7., the HCF of 64 and 42 is 4, the HCF of 36 and 45 is 3., the HCF 60 and 42 is 4.,

Revision on Fundamental Arithmetic Stage 0.8

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