Question

Va roooooog extrem de repede!!!!!Dau coroana! 23-(15-9+12)
16-[13-(10-8)]
9+19-[4-11-9)]
[15-(13-8)] - [20-(6+9)]
14+ {21 -[18-(20-8) ]+ 11}
25-{ [ 13 - (10-6) ] - [15- (22-9)]}​

Answer 1

Explicație pas cu pas:

23-(15-9+12) = 23-(6+12)=23-18=5

16-[13-(10-8)]=16-(13-2)=16-11=5

9+19-[4-11-9)]=9+19-(-16)=9+19+16=44

[15-(13-8)] - [20-(6+9)]=15-5-(20-15)=10-5=5

14+ {21 -[18-(20-8) ]+ 11}=14+(21-(18-2+11)=14+21-27=8

25-{ [ 13 - (10-6) ] - [15- (22-9)]}=25-(13-4)-(15-11)=25-9-4=12

Answer 2

Explicație pas cu pas:

23-(15-9+12)=

23-(6+12)=

23-18=

5

16-[13-(10-8)]=

16-(13-2)=

16-11=

5

9+19-[4-(11-9])=

9+19-(4-2)=

9+19-2=

28-2=

26

[15-(13-8)]-[20-(6+9)]=

(15-5)-(20-15)=

10-5=

5

14+{21-[18-(20-8)]+11}=

14+[21-(18-12)+11]=

14+(21-6+11)=

14+(15+11)=

14+26=

40

25-{[13-(10-6)]-[15-(22-9)]}=

25-[(13-4)-(15-13)]=

25-(9-2)=

25-7=

18