Question

9
Calculeaza:
a) 5. (2.5+ 1) - 4.5+ 1;
b) 5 + 5.19 +3.4);
c) (7.2 + 4)-15-11-14;
d) 7153-14.3-5)+3.4
le) (2+2.37:2
(5+10.5):11
ORDINEA EFECTUARII OPERATIILOR​

Answer 1

Răspuns:

A) 5×(2×5+1)-4×5+1=

5×(10+1)-20+1=

5×11-20+1=

55-20+1=

35+1=

36

B) 5+(5×19+3×4)=

5+(95+12)=

5+107=

112

C)(7×2+4)-15-11-14=

(14+4)-15-11-14=

18-15-11-14=

3-15-11-14=

-38

D)(7153-14×3-5)+3×4+(2+2×37:2)+(5+10×5):11=

(7153-42-5)+12+(2+74:2)+(5+50):11=

(7111-5)+12+(2+34)+55:11=

7106+12+36+11=

7118+36+11=

7154+11=

7165

SPER CA TE-AM AJUTAT!!!!