Question

Dintre exercitiile:
1
2(a,b,d)
4(a)
6(b)
7
8
Dau coroana

Answer 1

1. a) 15-43-27

-28-27=-55

b) 413-395+11= 18+11=29

c)642+423-999= 1065-99=66

d) 725-696+37=29+37=66

e)2138-809+57= 1329+57=1386

f)521-99+17-47=422+17-47=439-47=392