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Exemplo 1.24 de Prealgebra, 1.2 Add Whole Numbers
Problema e solução em inglês, como no livro original.
Hao earned grades of on the five tests of the semester. What is the total number of points he earned on the five tests?
Resolva no papel primeiro. Depois abra a solução um passo de cada vez e pare assim que conseguir terminar sozinho.
We are asked to find the total number of points on the tests.
| Write a phrase. | the sum of points on the tests |
| Translate to math notation. | |
| Then we simplify by adding. | |
| Since there are several numbers, we will write them vertically. | |
| Write a sentence to answer the question. | Hao earned a total of 432 points. |
Notice that we added points, so the sum is points. It is important to include the appropriate units in all answers to applications problems.
O Try It do livro logo depois deste exemplo: mesma ideia, outros números. Só a resposta é dada.
Mark is training for a bicycle race. Last week he rode miles on Monday, miles on Wednesday, miles on Friday, miles on Saturday, and miles on Sunday. What is the total number of miles he rode last week?
Como foi?