Question

1. Calculaţi: -a) 28+13.15; e) 1473-1170:15; g) 88-35+14-127; med 031 2. Calculaţi: 35-48-819; d) 169+168:14; f) 6696:31-178; h) 207-31+2128:14. b) 158-9-16; c) 35-48-819; c) b) 1296: (45-64:16-120:6:4); d) [26+3-(600: 75+1)-2]:8; stio s a) 729:27: (145-952:7); c) 144-5-[37-9-(111-107)]:24; e) 145-25-(41-3-13)-(435-36-5):15.​

Answer 1

Exercitiul 1.

a)28+13×15=28+195=223

b)153-9×16=153-144=297

c)35×48-819=1680-819=861

d)169+168÷14=169+12=181

e)1473-1170÷15=1473-78=1395

f)6696÷31-178=216-178=38

g)88×35+14×127=3080+1778=4858

h)207×31+2128÷14=6417+152=6569

Exercitiul 2.

a)729÷27÷(145-952÷7)=27÷(145-136)=27÷9=3

b)1296÷(45-64÷16-120÷6÷4)=1296÷(45-4-20÷4)=1296÷(45-4-5)=1296÷36=36

c)144×5×[37-9×(111-107)]÷24=720×(37-9×4)÷24=720×1÷24=30

d)[26+3×(600÷75+1)×2]÷8=(26+3×9×2)÷8=(26+54)÷8=80÷8=10

e)145-25×(41-3×13)-(435-36×5)÷15=120×2-255÷15=240-17=233