Respuesta:
[tex]8 \div 4 \times 9 + 7 = 2 \times 9 + 7 = 18 + 7 = 25[/tex]
[tex]6 \times 3 + 7 - 9 \div 3 = 18 + 7 - 3 = 25 - 3 = 22[/tex]
[tex]4 + 8 \times 2 \div 2 = 4 + 16 \div 2 = 4 + 8 = 12[/tex]
[tex]9 + 5 \times 5 - 16 = 9 + 25 - 16 = 34 - 16 = 18[/tex]
[tex]2 \times 7 + 9 \div 3 = 14 + 3 = 17[/tex]
[tex]20 \div 2 \times 3 - 15 = 10 \times 3 - 15 = 30 - 15 = 15[/tex]
[tex]25 \div 5 + 4 - 2 = 5 + 4 - 2 = 9 - 2 = 7[/tex]
[tex]2 + 7 \times 9 - 23 = 2 + 63 - 23 = 65 - 23 = 42[/tex]
[tex]3 \times 4 + 5 \times 6 = 12 + 30 = 42[/tex]
[tex]7 + 18 - 6 \times 2 = 7 + 18 - 12 = 25 - 12 = 13[/tex]
[tex]3 \times 8 - 4 + 16 \div 4 = 24 - 4 + 4 = 20 + 4 = 24[/tex]
[tex]4 \times 8 + 63 \div 7 = 32 + 9 = 41[/tex]
[tex]56 \div 7 + 2 \times 7 = 8 + 14 = 22[/tex]
[tex]2 + 48 \div 6 - 19 = 2 + 8 - 19 = 10 - 19 = -9[/tex]
