Q1. Simplify
a) 9 +45- (7 + 4) x6 = 3
b) 1 + 2 (64 = 8 - 8)
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a) 9 + 45 - (7+4) × 6 = 3
= 9 + 45 - (7+4) × 6 - 3
= 9 + 45 - 11 × 6 - 3
= 9 + 45 - 66 - 3
= 54 - 66 - 3
= 54 - 69
= - 15
b) 1 + 2( 64 = 8 - 8)
= 1 + 2 (64 = 0)
= 1 + 2 (64 - 0 )
= 1 + 2 ( 64)
= 3 ( 64)
= 192
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