a) (256-1300:13):10-676: 169; b) 416:4-5 (361:19-256:32); c) 720:90+(2-19-2-16) 12-36:6; d) (35-3-(67+33)] 10; e) I +2 + {3+4 [5+6 (216:36-54:9)]}: 0 (319+171):7.2+5.(77-65)]: (7+93); g) [21:8-3-(10-3)(2)-1; h) 10+5.[50-6:22-2-340:39. (22 +9+44 +55)°).REPEDE VĂ ROG FRUMOS!!