Question

Efectuează:
a) 35-5:5 +21:3=
79 - 72 : 9 + 5 x 20=
b) (3 0 + 24 : 4) - 1 6 : 8 =
1 0 0 - 1 2 x (5 + 25) : 10=
c) 3 6 : 4 + 5 - (3 0 + 5 1) : 9 + (19 - 8 x 2)= ​

Answer 1

Explicație pas cu pas:

35-5:5+21:3=

35-1+7=

34+7=

41

79-72:9+5×20=

79-8+100=

71+100=

171

(30+24:4)-16:8=

(30+6)-16:8=

36-2=

34

100-12×(5+25):10=

100-12×30:10=

100-360:10=

100-36=

64

36:4+5-(30+51):9+(19-8×2)=

36:4+5-81:9+(19-16)=

36:4+5-81:9+3=

9+5-9+3=

14-9+3=

5+3=

8