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Efectuează:
a) (6 x 5 + 8 x 5) + ( 9 x 5 – 3 x 5) =
b) (96 - 92) x 5 + 4 x 5 =
c) (4 x 9-7X 3) + (5 x 4 - 4x 3) =
d) (8 x 3 + 4 x 4) – (2 x 9 - 3 x 3) =
Ajutor va rog ​


Răspuns :

Răspuns:

A) (30+40)+(45-15)

70+30

100

B) 4×5+20

20+20

40

C) (36-21)+(20-12)

15+8

23

D) (24+16)-(18-9)

40-9

31

la prima

(30+40)+(45-15)

70+60

130

la a doua

4×5+20

20+20

40

la a treia

(36-21)+20-12

15+12

27

la a patra

(24+15)-(18-9)

40-9

31

sper ca te am ajutat:)