Answer

(a) 32 – (+45) = 32 – 45
 
= –13
 
(b) –49 + (–23) = –49 – 23
 
= –72
 
(c) 31 + (+28) = 31 + 28
 
= 59
 
(d) –46 – (–26) = –46 + 26

= –20

Back to Instruction