- $$20860 \cdot 6 = 125160$$
- $$42800 - 7 = 42793$$
- $$8 \cdot (7852 - 1309) = 8 \cdot 6543 = 52344$$
- $$41500 - 9 = 41491$$
- $$3 \cdot 90304 = 270912$$
- $$5 \cdot (12805 + 73607) = 5 \cdot 86412 = 432060$$
Ответ: 1) 125160; 2) 42793; 3) 52344; 4) 41491; 5) 270912; 6) 432060.