1. 9^2×8 = 9×9×8 = 5832
2. 700-9×7×7 = 700- 441 = 259
3. (800-36)×5 = 764×5 = 3820
4. 9×9×100+5046 = 81×100+5046 = 8100+5046 = 13146
5. 4×4+9×9 = 16+81 = 97
6. (пример 3)×20 = 764×20 = 15280
7. (5×5+8×8)+967 = (25+64)+967 = 89+967 1056
8. (9×9+10×10)+198 = (81+100)+198 = 181+198 = 379