1) 3 141 306 – 141 141 × (5221 + 7084 – 9999) ∶ 141 = 3 141 306 – 141 141 × (12305 – 9999) ∶ 141 = 3 141 306 – 141 141 × 2306 ∶ 141 = 3 141 306 – 325 547 706 ∶ 141 = 3 141 306 – 2308849 = 832457.
5221
+ 7084
------
12305
- 9999
------
2306
141141
* 2306
--------
846846
+423423
282282
--------
325547706
325547706 | 141
-282 | 2308849
------
435
- 423
------
124
- 0
------
1247
- 1128
------
1197
- 1128
------
690
- 564
------
1266
- 1128
------
138
3141306
-2308849
------
832457
2) 2 029 201 – 1 029 190 ∶ (59 030 – 49 070 + 230) × 10 = 2 029 201 – 1 029 190 ∶ (9960 + 230) × 10 = 2 029 201 – 1 029 190 ∶ 10190 × 10 = 2 029 201 – 101 × 10 = 2 029 201 – 1010 = 2 028 191.
59030
-49070
------
9960
+ 230
------
10190
1029190 | 10190
-10190 | 101
-------
10190
-10190
-------
0
2029201
- 1010
--------
2028191
Ответ: 1) 832457; 2) 2 028 191