An important characteristic of the decimal numbering system is positional value. Based on this concept, we know that the number 25, for example, di...
An important characteristic of the decimal numbering system is positional value. Based on this concept, we know that the number 25, for example, differs from the number 52. Choose the alternative that correctly represents the cause of such differentiation.
a) The number 25 has 2 tens and 5 thousands, while the number 52 has 5 tens and 2 thousands. b) The number 25 has 2 tens and 5 units, while the number 52 has 5 tens and 2 units. c) The number 25 has 2 units and 5 thousands of tens, while the number 52 has 5 units and 2 thousands of tens. d) The number 25 has 2 units and 5 tens, while the number 52 has 5 units and 2 tens.
A alternativa correta é a letra d) O número 25 tem 2 unidades e 5 dezenas, enquanto o número 52 tem 5 unidades e 2 dezenas. A posição de cada algarismo em um número é o que determina o seu valor, e a troca de posição dos algarismos pode alterar completamente o valor do número.
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