Question

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

Answer 1

Răspuns:

1 a)41.15

b)149-16=133

e)1395

g)-60

c)-832

d)181

f)38

h)328

2 a)729÷27÷(145-136)=729÷27÷9=27÷9=3

c)144-5-(37-9-4)=144-5-24=139-24=115

e)145-25-(38-13)-(399-5):15=144-25-25-394:15=-300:15=-20

b)1296÷(45-4-5)=1296÷36=36

pe d nu-l știu