Calculeaza respectand regulile invatate

Calculeaza respectand regulile invatate

Rezolvare

a)

205 - 4 x 13 = 205 - 52 = 153

171 + 4 x 28 = 171 + 112 = 283

b)

63 + 43 x 6 - 121 = 63 + 258 - 121 = 200

136 - 50 x 2 + 98 = 136 - 100 + 98 = 134

c)

9 x 7 + 8 x 12 + 73 = 63 + 96 + 73 = 232

82 x 3 - 9 x 9 - 6 x 7 = 246 - 81 - 42 = 123

Probleme si exercitii rezolvate clasa a 3-a

Probleme si exercitii rezolvate