Question

Add the following numbers

a. - 12.4 + ( - 47.5) =

b. 97.9 + ( - 1.1) =

c. - 10 - ( - 20.5) =

Answer 1

a. -59.9
b.96.8
c.10.5

Answer 2

key points :
• for part (a) and (b), “+” multiplied by “—” is still negative (—)
• for part (c), “—” multiplied by “—” is positive “+”

feel free to clarify if you have any doubts!