Question

Calculează:
a) (18 + 2 x 7): (12:2 +8:4)
21-24:3x (72:9-2x3): 4x5
26.6+ 4x2x5-(20 - 12:3)
d) 42:7 + (6 + 6): 2-24: (5+3)
e) (25 + 20):5-(19 + 5):8
f) 10 + (10:10 + 10) - (10 x 1 + 10)

REPEDE VA ROOOG!!!!!!​

Answer 1

Răspuns:

Explicație pas cu pas:

a) (18 + 2 x 7): (12:2 +8:4)

(18+14):(6+2)

32:8=4

21-24:3x (72:9-2x3): 4x5

21-24:3x (8-6): 4x5

21-24:3x2: 4x5

21-8x2: 4x5

21-16: 4x5

21-4x5

21-20

1

26.6+ 4x2x5-(20 - 12:3)

26.6+ 4x2x5-(20 - 12:3)

156+40-(20-4)

156+40-16

180

d) 42:7 + (6 + 6): 2-24: (5+3)

7+ 12: 2-24: 8

7+6-3

13-3=

10

e) (25 + 20):5-(19 + 5):8

45:5-24:8

9-3=6

f) 10 + (10:10 + 10) - (10 x 1 + 10)

10 + (1 + 10) - (10 + 10)

10 +11 - 20=

21-20=

1