4,45*10+844:100-35,7:1000+508,432:10
1) 4.45 * 10 =44.5 844\100 = 8.44 35.7\1000 =0.0357 508.432\10 =50.8432 44.5 +8.44 = 52.94 52.94- 0.0357= 52.9043 52.9043 + 50.5432 = 103.4475