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Exemplo 3.44 de Prealgebra, 3.3 Subtract Integers
Problema e solução em inglês, como no livro original.
The temperature in Urbana, Illinois one morning was degrees Fahrenheit. By mid-afternoon, the temperature had dropped to degrees Fahrenheit. What was the difference between the morning and afternoon temperatures?
Resolva no papel primeiro. Depois abra a solução um passo de cada vez e pare assim que conseguir terminar sozinho.
| Step 1. Identify what we are asked to find. | the difference between the morning and afternoon temperatures |
| Step 2. Write a phrase that gives the information to find it. | the difference of and |
| Step 3. Translate the phrase to an expression. The word difference indicates subtraction. |
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| Step 4. Simplify the expression. | |
| Step 5. Write a complete sentence that answers the question. | The difference in temperature was degrees Fahrenheit. |
O Try It do livro logo depois deste exemplo: mesma ideia, outros números. Só a resposta é dada.
The temperature in Anchorage, Alaska one morning was By mid-afternoon the temperature had dropped to below zero. What was the difference between the morning and afternoon temperatures?
Como foi?