[tex]34 + 6 \times 7 - 1 - 2 + 8 - 5 \div 5 + 6 \times 9 + 70 \div 7 \\ 34 + 42 - 1 - 2 + 8 - 1 + 54 + 10 \\ = 144[/tex]
[tex]70 + (50 - 4 \times 5) - (7 \times 5 + 5) + (8 \times 6 \div 2) \\ 70 + (50 - 20) - (35 + 5) + 24 \\ 70 + 30 - 40 + 24 \\ = 84[/tex]
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[tex]34 + 6 \times 7 - 1 - 2 + 8 - 5 \div 5 + 6 \times 9 + 70 \div 7 \\ 34 + 42 - 1 - 2 + 8 - 1 + 54 + 10 \\ = 144[/tex]
[tex]70 + (50 - 4 \times 5) - (7 \times 5 + 5) + (8 \times 6 \div 2) \\ 70 + (50 - 20) - (35 + 5) + 24 \\ 70 + 30 - 40 + 24 \\ = 84[/tex]