17.93 + 116.83 + 17.23
(456.11 + 912).37 : 13: 74
17.93+116.83+17.23[tex]=17.(93+23)+116.83=116.17+116.83=116.(17+83)=116.100=11600[/tex]
[tex](456.11 + 912).37 : 13: 74=(456.11+456.2).37:13:74=456(11+2).37:13:74=456.13.37:13:74=228.13.74:13:74=228[/tex]