1. 42/0,35=120; 3,24/5,4=0,6; 7/56=0,125; 2,8/0,56=5
120-0,6-0,125+5=124,275
2. 52,91/1,3=40,7; 1,472/0,46=3,2; 40,7-3,2=37,5;
37,5*2,6=97,5; 97,5+1,13=98,63
3. 1,0043/0,083=12,1; 16,38-12,1=4,28; 26-4,28=21,72
4. 5,136-1,128=4,008; 4*2,65=10,6; 10,6-9,8=0,8; 4,008/0,48=8,35; 0,8*2,72=2,176; 8,35-2,176=6,174