1Mathematics is a valuable subject to study for three reasons. First, it is not easy to learn math, which means we must set aside time for studying. Having to set a time and place on a regular basis develops self dash discipline. But math is valuable for another reason as well. Math teaches us to think logically. In math, one step leads to another step. A mistake at any step means the entire problem will be incorrect. This kind of logical thinking is also required in our daydashtodashday lives. Therefore, as we learn to become more logical thinkers doing math problems, we become more logical in general and can make better decisions in our lives. Finally, the study of mathematics helps us see relationships among things. In particular, we learn to look for cause and effect. In this way, math gives us a tool for seeing causes and effects in daily life. In a nutshell, time spent studying mathematics benefits us in daily life. How does this writer support the topic sentence?

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with facts
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with reasons
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with questions
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with statistics