1.
[tex] \frac{400}{2} + 24 \times 3 - 12 \times 2 \\ 200 + 72 - 24 \\ 272 -24 = 248[/tex]
2.
[tex]32 + 18 + 12 \times 15 \\ 3 2+ 18 + 180 = 230[/tex]
3.
[tex](18 - 15) \times 3 + 44 \times 25 \\ 3 \times 3 + 44 \times 25 \\ 9 + 1100 = 1109[/tex]
4.
[tex]65 + 18 + 12 - 40 \\ 83 + 12 - 40 \\ 95 - 40 = 55[/tex]
5.
[tex]( \frac{100}{5}) \times 2 + 15 \times 25 + 18 \\ 20 \times 2 + 15 \times 25 + 18 \\ 40 + 375 + 18 = 433[/tex]
6.
[tex](44 \times 12) + (12 \times 15) + 12 \\ 528 + 180 + 12 = 720[/tex]
7
[tex]24 \times 12 + 34 + 67 \times 15 \\ 288 + 34 + 1005 = 1327[/tex]
8.
[tex]123 \times 54 + 45 \times 12 \\ 6642 + 540 = 7182[/tex]
recuerda siempre hay que multiplicar o dividir antes que sumar o restar
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1.
[tex] \frac{400}{2} + 24 \times 3 - 12 \times 2 \\ 200 + 72 - 24 \\ 272 -24 = 248[/tex]
2.
[tex]32 + 18 + 12 \times 15 \\ 3 2+ 18 + 180 = 230[/tex]
3.
[tex](18 - 15) \times 3 + 44 \times 25 \\ 3 \times 3 + 44 \times 25 \\ 9 + 1100 = 1109[/tex]
4.
[tex]65 + 18 + 12 - 40 \\ 83 + 12 - 40 \\ 95 - 40 = 55[/tex]
5.
[tex]( \frac{100}{5}) \times 2 + 15 \times 25 + 18 \\ 20 \times 2 + 15 \times 25 + 18 \\ 40 + 375 + 18 = 433[/tex]
6.
[tex](44 \times 12) + (12 \times 15) + 12 \\ 528 + 180 + 12 = 720[/tex]
7
[tex]24 \times 12 + 34 + 67 \times 15 \\ 288 + 34 + 1005 = 1327[/tex]
8.
[tex]123 \times 54 + 45 \times 12 \\ 6642 + 540 = 7182[/tex]
recuerda siempre hay que multiplicar o dividir antes que sumar o restar