Question

calculeaza in doua moduri:5×(4+3)=;6×(5+4)=;5×6+5×3=;3×6+6×7=;5×(4+3)=;6×(5+4)=;5×6+5×3=;5×6+6×7=​

Answer 1

Răspuns:

Primul mod:

a. 5*7=35

b.6*9=54

c.30+15=45

d.18+42=60

Al doilea mod

a.5*4+5*3=35

20+15=35

b.6*5+6*4=54

30+24=54

c.5*(6+3)=45

5*9=45

d.6*(3+7)=

6*10=60

Sper ca te-am ajutat!!