Răspunsuri

2014-05-21T19:55:11+03:00
1) 35/100 *144= 7/20 *144= 7/10 *72= 504/10= 50,4%

2)144/100 *35= 36/25 *35= 36/5* 7=  252/5=50,4 %

3)80/100*20= 4/5 *20= 4*4=16%

4)80/100*60=4/5 *60= 4*12=48%

5)15/100*900= 3/20*900= 3/2*90= 270/2=135%

6)6/100 * 15000= 6*150= 900%

7)80/100*30= 4/5 *30= 4*6=24%

8)60/100*40= 3/5 *40= 3*8=24%