MATH 212 Midterm: MATH212_ALL-SECTIONS_FALL2014_0000_MID_SOL_2

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

Document Summary

Is 9 - . because : a. ronald thinks that - x - 2 are both equal to 3, and - x - = -. Sketch an area model of this product using the grid below gust an appropriate portion of it, not the entire grid). Do not simply use the standard algorithm; explain how ronald"s approach is partially correct and explain how to make it completely correct. 1: georgina thinks that 14. 4 -;- 120 is 12, because 144 -;- 12 is 12, and since she multiplies 14. 4 times 10 and divides 120 by 10, the tens cancel out. Write a word problem to illustrate 6 x -7 = -42. Make sure your word problem gives a reasonable interpretation of the negative numbers in both the factor and the product. 1m ~ s. h. d:. lj cd- 0 , 1-rz /j-