45.010-(3.908+17.613)=23.489
1)17.613 2)45.010
+ 3.908 - 21.521
________ _______
21.521 23.489
60.000-2.407+5.849=63.442
1)60.000 2)57.593
- 2.407 + 5.849
_______ _______
57.593 63.442
6.008*9=54.072
91.005*3=273.015
97.168*6=583.008
7*23.844=166.908