[tex]636 \div 3 \times (2 + 240 - 228) = \\ = 212 \times 14 = 2968\\ \\ 242 \div 2 + (662 \div 2 - 90) = \\ = 121 + (331 - 90) = 121 + 241 = 362 \\ \\ [/tex]
[tex](750 - 369 \div 3 \times 2) + (884 \div 4 \times 3 - 106) = \\ = (750 - 123 \times 2) + (221 \times 3 - 106) = \\ = (750 - 246) + (663 - 106) = \\ = 544 + 557 = 1101[/tex]
[tex](900 - 484 \div 4 \times 2) - 220 \div 2 = \\ = (900 - 121 \times 2) - 110 = \\ = (900 - 242) - 110 = \\ = 658 - 110 = 548[/tex]