Răspuns :
Nr. 349 si 576
a) (576-349)×5=227×5=1135
b) (576+349):5=925:5=185
c) (576+349)×3-27=925×3- 29=2775-27=2745
a)576-349=227x5=1135
b)576+349=925:5=185
c)(576+349)x3-27=
= 925 x3-27=
= 2775 -27=
= 2748
b)576+349=925:5=185
c)(576+349)x3-27=
= 925 x3-27=
= 2775 -27=
= 2748