3.268 Вычислите: a) 465 : (141 + 14.22-11.38) + 594 : 33; 6) (17.9-403 : 31). (1598 : 47 - 24); в) (110 + 17.6).240 :(400-5.64); r) (54+1112-139) 31 - 46; Д) 8607 + 7605 + (376 012-83 314): 414: 7: e) (5980 + 6620): 28: (5.3+15-29).

Вычислим:

а) 465 : (141 + 14 ⋅ 22 - 11 ⋅ 38) + 594 : 33 = 465 : (141 + 308 - 418) + 594 : 33 = 465 : 31 + 594 : 33 = 15 + 18 = 33

1. 14 ⋅ 22 = 308
2. 11 ⋅ 38 = 418
3. 141 + 308 = 449
4. 449 - 418 = 31
5. 465 : 31 = 15
6. 594 : 33 = 18
7. 15 + 18 = 33

б) (17 ⋅ 9 - 403 : 31) ⋅ (1598 : 47 - 24) = (153 - 13) ⋅ (34 - 24) = 140 ⋅ 10 = 1400

1. 17 ⋅ 9 = 153
2. 403 : 31 = 13
3. 1598 : 47 = 34
4. 153 - 13 = 140
5. 34 - 24 = 10
6. 140 ⋅ 10 = 1400

в) (110 + 17 ⋅ 6) ⋅ 240 : (400 - 5 ⋅ 64) = (110 + 102) ⋅ 240 : (400 - 320) = 212 ⋅ 240 : 80 = 50880 : 80 = 636

1. 17 ⋅ 6 = 102
2. 5 ⋅ 64 = 320
3. 110 + 102 = 212
4. 400 - 320 = 80
5. 212 ⋅ 240 = 50880
6. 50880 : 80 = 636

г) (54 + 1112 - 139) ⋅ 31 - 46 = (1166 - 139) ⋅ 31 - 46 = 1027 ⋅ 31 - 46 = 31837 - 46 = 31791

1. 54 + 1112 = 1166
2. 1166 - 139 = 1027
3. 1027 ⋅ 31 = 31837
4. 31837 - 46 = 31791

д) 8607 + 7605 + (376 012 - 83 314) : 414 : 7 = 8607 + 7605 + 292698 : 414 : 7 = 8607 + 7605 + 707 : 7 = 8607 + 7605 + 101 = 16212 + 101 = 16313

1. 376 012 - 83 314 = 292698
2. 292698 : 414 = 707
3. 707 : 7 = 101
4. 8607 + 7605 = 16212
5. 16212 + 101 = 16313

e) (5980 + 6620) : 28 : (5 ⋅ 3 + 15 - 29) = 12600 : 28 : (15 + 15 - 29) = 12600 : 28 : (30 - 29) = 12600 : 28 : 1 = 450 : 1 = 450

1. 5980 + 6620 = 12600
2. 5 ⋅ 3 = 15
3. 15 + 15 = 30
4. 30 - 29 = 1
5. 12600 : 28 = 450
6. 450 : 1 = 450

Ответ: a) 33; б) 1400; в) 636; г) 31791; д) 16313; e) 450