Question

0blicz jak najprostszym sposobem:

a)105+(-7)+(-13)+20=

b)-16+67+(-10)+(-7)+66=

c)2 i 2/5 +(4,1)+7 i 3/5+(-5,9)=

d)4 i 4/7 + 5,4+(1 i 4/7)+(-7,4)=

e)-0,75+6,3+(-1,1)+(1/4)+(-6,3)=

prosze o pomoc pilne !!!

Answer 1

105-7=98-13=85+20=105 :)

 

Answer 2

a]105+[-7]+[-13]+20=105
b] -16+67+[-10]+[-7]+66=100
c] 2 2/5+4,1+7 3/5+[-5,9]=2,4+4,1+7,6+[-5,9]=8,2
d] 4 4/7+5,4+1 4/7+[-7,4]=4,57+5,4+1,57+[-7,4]=4,14
e]
-,0,75+6,3+[-1,1]+1/4+[-6,3]=-0,75+6,3+[-1.1]+0,25+[-6,3]= -1,6