1.
12,34 + 12,66 = 25 12,66 + 12,34 = 25 56,07 + 0,09 = 56,16
15,82 + 34,52 = 50,34 21,78 + 23,98 = 45,76 52,39 + 4,09 = 56,48
2.
5/10 = 0,5 9/10 = 0,9 64/100 = 0,64 8/100 = 0,08 725/1000 = 0,725
152/10 = 152,10 836/10 = 83,6 912/100 = 9,12 2006/100 = 20,06 81/100 = 0,81