Question

337 !!!!!!!!!!!!!!!!!!!!!

Answer 1

1). (0,2*500)*34,946=100*34,946=3494,6

2). (0,8*0,25)*(12,5*4)*7,2=(0,2*50)*7,2=10*7,2=72

3). 2,929*(8,356+1,644)=2,929*10=29,29

4). 3,21*(47,612-47,512)=3,21*0,1=0,321