1. Evaluate the following:
(1) 72+(-8) (ii) (-48) = 3
(ii) (-75) + (-5) (iv) 120 = (-10)
(v) (-132) + 12 (vi) 0+ (-175)
(vii) 320 + (-16) (viii) (-240) + (- 12)
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Answer:
( 1 ) 72 + ( - 8 )
= 72 - 8
= 64
( 2 ) ( - 48 ) = 3
= -48 - 3 = 0
= - 51 = 0
( 3 ) ( -75 ) + ( - 5 )
= -75 - 5
= -80
( 4 ) 120 = ( - 10 )
= 120 + 10 = 0
= 130 = 0
( 5 ) ( -132 ) + 12
= -132 + 12
= - 120
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