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Ex 2,3,4................. ​

Ex 234 class=

Răspuns :

Explicație pas cu pas:

2.

a) 18+57=75

b) 3×2×75=6×75=450

c) 5×75=375

d)7×75+75=525+75=600

3.

in poza

4.

in poza

Sper ca imi intelegi scrisul

Vezi imaginea URLOCALNERDYWEEB
2)
a=75
b=1887
c =41 514
d=1.979.759


3)
a+b
365,1380,200,4000,2748,150


a-b
109,1134,4000,108,2498,2000,106



5xa-b
545,5670,20.000,540,12.490,10.000,530



(a+b)(a-b)
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