MATH 212 Midterm: MATH212_ALL-SECTIONS_SPRING2008_0000_MID_EXAM
10 Jan 2019
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Show how to round 31. 463 to the nearest tenth by plotting it on the number line below and labeling the tick marks on the number line appropriately. Label the longer tick marks sensibly in terms of place value. Be sure your choice of labeling clearly justifies the result of rounding to the nearest tenth. Suppose a = 25. 32. 72. 11. 19 and gcf (a, b) = 24. 72. 11. Use either prime factorization or the slide method to find the gcf and lcm of 630 and: show work. Label the number lines below in two different ways such that the labeling of tick marks is consistent. Make sure to label the longer tick marks logically in terms of place value. Explain why 17/70 has a repeating decimal representation. Do not just quote a rule; explain why the rule makes sense. Sketch base six blocks to illustrate 253six b. State the rule for testing divisibility by 9 (in base ten) and explain why it works.
