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Mathematics, 10.12.2020 14:50 brisamauro27
1 – Determine o valor de cada soma algébrica:
a) 10 – (- 6) b) – (+9) c) 6 +(- 9+1) d) - 20+(+43)
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1 – Determine o valor de cada soma algébrica:
a) 10 – (- 6) b) – (+9) c) 6 +(- 9+1) d) - 20+(+43) <...
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