Question

2. Calculaţi: b) 1296: (45-64:16-120:6:4); d) [26+3 (600: 75+1)-2]:8; aldos in litiosa a) 729:27: (145-952:7); c) 144-5-[37-9-(111-107)]:24; e) 145-25-(41-3-13)-(435-36-5):15.
răpid vă rog​

Answer 1

Explicație pas cu pas:

a) = 27:( 145-136)

= 27:9

= 3

b) = 1296 : (45-4-20:4)

= 1296 : (45-4-5)

= 1296 : 36

= 36

c) = 720 × (37-9×4 ) :24

= 720× ( 37 - 36 ) :24

= 720 × 1 : 24

= 720 :24

= 30

d) =[ 26 +3 × ( 8+1) ×2 ] :8

= ( 26 + 3× 9 ×2 ) : 8

= ( 26+ 27×2) :8

= (26 + 54) :8

= 80:8

= 10

e) = 145- 25× ( 41-39) - (435-180) :15

= 145- 25× 2 - 255:15

= 145 - 50 -17

= 95-17

= 78