Question

Efectuati: a 1221 +462:11 - 37. 12, c24. 13-715.55 +13, e 77 - 25:11-17 + 78, 9255-144:12 + 27. 19; Rezolva problema chiar aici: b 25 25 - 500:25 +49; d 72.56:63 +123-57; f32 24:48 - 144:9; h 46 - 18 +249:3-99.vă rog!!!!e urgent
​

Answer 1

1221+462:11-37*12=

1221+42-444-1263-444-81

25 25-500:25+499

625-20+49

605+49-654

24 13-715:55+13

312-13+13

299+13-312

72 56:63+123-57=

4.032:63+123-57

64+123-57=

187-57-130

77*25:11-17+78=

1.925:11-17+78=

175-17+78=

158+78-236

255-144:12+27 18-

255-12+486=

243+486=729