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Juliano
Em cada item, escreva o número decomposto.
a) 8 × 10000 + 5 × 1000 + 1 × 100 + 0 × 10 + 2 × 1 =
b) 6 × 10000 + 5 × 1000 + 0 × 100 + 1 × 10 + 8 × 1 =
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