13 Составь программу действий и вычисли: * a) 21 488 : 316 : 68 + (3600·409 38050): 818 : 1001; 91.250): 56 938+ (7259 – 0). (896 : 1) : 8:14. б) (325.70 -

a) 21 488 : 316 : 68 + (3600⋅409 - 3805⋅0) : 818 : 100⋅1;

1. 21 488 : 316 = 68
2. 68 : 68 = 1
3. 3600 ⋅ 409 = 1472400
4. 3805 ⋅ 0 = 0
5. 1472400 - 0 = 1472400
6. 1472400 : 818 = 1800
7. 1800 : 100 = 18
8. 18 ⋅ 1 = 18
9. 1 + 18 = 19

Ответ: 19

б) (325⋅70 - 91⋅250) : 56 938 + (7259 – 0) ⋅ (896 : 1) : 8:14.

1. 325 ⋅ 70 = 22750
2. 91 ⋅ 250 = 22750
3. 22750 - 22750 = 0
4. 0 : 56 938 = 0
5. 7259 - 0 = 7259
6. 896 : 1 = 896
7. 7259 ⋅ 896 = 6503104
8. 6503104 : 8 = 812888
9. 812888 : 14 = 58063,428
10. 0 + 58063,428 = 58063,428

Ответ: 58063,428