Simplify: 523
19
18
1823
2813+12516 =
4014
40616
40916
977.62 − 128.41 =
841.49
845.21
847.49
849.21
22115-435 =
18715
18215
17215
17715
8.7 + 55.33 =
63.4
63.43
64.03
64.4