Question

calculați:a)60-40:4 ; b)25-20:(13-8; c)142:(1+2×35) ; d)12+60:[14-2×(3+2)]​

Answer 1

Răspuns:

a)60-40=20:4=5

b)25-20:(13-8)= 13-8=5 25-20=5 ; 5:5=1

Answer 2

Răspuns:

a) 60-40:4=60-10=50

b) 25-20:(13-8)=25-20:5=25-4=21

c) 142:(1+2×35)=142:(1+70)=142:71=2

d) 12+60:[14-2×(3+2)]=12+60:(14-2×5)=12+60:(14-10)=12+60:4=12+15=27