Вычислите удобным способом.
а) 237+548+623=...
б) 315+842+228=...
в) 296+(422+504)=...
г) 221+222+223+224+229+228+227+226+225
а) 237+548+623=...
б) 315+842+228=...
в) 296+(422+504)=...
г) 221+222+223+224+229+228+227+226+225
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Answers & Comments
842+228+315=1385
(504+296)+422=1222
221+229+222+228+223+227+224+226+225=2025
Verified answer
1) 237+623+548 = 860 + 548 = 14082) 842+228+315 = 1070 + 315 = 1385.
3) (296+422)+422=800+422 = 1222
4) 450+450+450+450+225 = 2025