Question

Rezolvă exercițiile, respectând regulile învățate. a. 64:(4 + 4) e. 27:3+ (4 + 12 x 2):4 b. (22 +26): 2 f. 42:7 + (84: 4 + 3 x 9) 3-72:8 c. 150 - (25 +25) x 2 g. 12 x 9 + (25-5 5): 10 - 12 x 9 d. (15 + 25): 5 - 10:5 h. (99:9 +23 x 3): 10 + 10:10:1
URGENT VA ROG,
DAU COROANĂ​

Answer 1

Răspuns:

64:(4+4)=

64÷8=8

27:3+(4+12×2):4

9+(4+24):4=

9+28:4=

9+7=16

(22+26):2=

48:2=24

42:7 + (84: 4 + 3 x 9) 3-72:8=

6+(21+27)×3-9

=6+48×3-9

6+144-9=150-9=141

c. 150 - (25 +25) x 2

150-50×2

150-100=50

g. 12 x 9 + (25-5 5): 10 - 12 x 9

108+0:10-108

108+0-108=0

d. (15 + 25): 5 - 10:5

40:5-2

8-2=6

h. (99:9 +23 x 3):10+10:10:1

(11+69):10+1

70:10+1=7+1=8