Question

1. Efectuati calculele:
a)2-(-10)+10
b) 3-(-11)+22:(-2);
c)3+(-5)² -(-20) ÷ (-4)
d) + (-7+(-3° +6)-(-2)]​

Answer 1

Răspuns:

a) 2-(-10)+10=2+10+10=22

b) 3+11-11=14-11=3

c) 3+(-5)^2-(-20)÷(-4)=3+25+20÷(-4)=3+25-5=23

d) +(-7+(3^0+6)-(-2)]=-7+(1+6)+2=-7+7+2=2