<span><span>9520 : 8 =1190
21000 : 210 =100
5500 : 11 =500
22000 : 20 =1100
6860 : 7 =980
</span><span>78400 : 56 =1400
228000 : 38 =6000
905000 : 50 =18100
844000 : 20 =42200
</span></span>8720 : 4 =2180
В-5 метров
Так ка 1 дм=10
1 метр= 100 см
2)13/24-7/16 =26/48-21/48=5/48
2) 1 4/15+3 7/25 =1 20/75+3 21/75=
4 41/75
4) 9 11/12-5 3/8=9 22/24-5 9/24=
4 13/24