Ответ:

1. 65880

2. 12520

3. 46

4. 65

5. 1224

6. 230000

1. 970

2. 1100

3. 100000

4. 1000000

Пошаговое объяснение:

1. (127+89) × 305 = 216×305=65880

2. 59057:73 + 239×49=809+11711=12520

3. 139725 :405 - 151892:508=345-299=46

4.7410 + 51642 : (517+389) = 59052 : 906 = 65

5. 81 × (2423-1879):36 = 81 × 544 : 36 = 44064 : 36 = 1224

6. (10034-17514:21)×25= (10034-834)×25=9200×25=230000

1. 7×65+7×35+3×35+3×55=7 ×(65+35) + 3 ×(35+55) = 7 × 100 + 3 ×90 = 700 + 270 =970

2. 8×3+3×93+8×97+3×7= 8 ×(3+97) + 3 × (93 + 7) = 8 × 100 + 3×100= 800+300= 1100

3. 37 ×49+37×51+63×49+51×63 = 37 (49+51) + 63 (49 + 51) = 37 × 100 + 63 ×100 = 37000 + 63000 =100000

4. 819×73+181×27+73×181+27×819= 819 (73+27)+181(27+73)= 819× 100 + 181×100 = 1000000