Question

aceste exercitii pls

Answer 1

Răspuns:

7. a) Adevărat

b) Adevărat

8. a) Adevărat

b) Adevărat

c) Fals

d) Adevărat

9. a) 2 • 40 = 16 • 5

80 = 80

b) 7 • 20 = 35 • 4

140 = 140

c) 5• 72 = 45 • 8

360 = 360

d) 9 • 56 = 63 • 8

504 = 504

10. a) x = 7 • 4/ 2• 2 = 28/4 = 7

b) x = 6 • 4/4 • 3 = 24/12 = 2

c) x = 3 • 6/7 • 2 = 18/14 = 9/7

d) x = 5 • 9/3 • 3 = 45/9 = 5

Sper ca te-am ajutat!