180:20= 9; 1800:200=9 ; 450:50=9 ; 4 500 :500=9; 400000-702*50:100=400000-351=399649; 190 *200+(32148-16)=38000+32132=70132.
180:20= 9;
1800:200=9 ;
450:50=9 ;
4 500 :500=9;
400000-702*50:100=400000-351=399649;
190 *200+(32148-16)=38000+32132=70132.