MATH 212 Midterm: MATH212_ALL-SECTIONS_FALL2014_0000_MID_EXAM_1

• School: University of Maryland
• Department: Mathematics
• Course: MATH 212
• Professor: All

Document Summary

Lana is just about to put a dish of fudgeknuckle brownies in the oven. This exquisite dessert requires careful precision with timing: 2 hours, 48 minutes, and 13 seconds in the oven, and then 30 minutes, 49 seconds to cool after being removed from the oven. Be sure to show each step of the calculation. Keep the times in hours, minutes, seconds and show all regrouping steps needed. Identify the properties used at the indicated steps of the following calculation. = (3 25)(4 12) by the __________________________________ = 3 (25 4) 12 by the __________________________________ = 300 10 + 300 2 by the ____________________________________ Show how to use pictures of positive and negative chips to simplify each of the following. 3 5: 5 8, 5 + 8, 5 8, 5 + 8. Match each story problem below to the corresponding number sentence. Give the answer. (an answer may be used more than once.