Math 212 Final ExamA Fall 2014
Name Instructor
Please copy and sign: I pledge on my honor that I have not given or received any unauthorized assistance on
this exam. [signed]
1(8). Letm = 22 x 53 x 175 x 238
a. Is 34 a factor of m? Explain by referring
Math 212
Spring 2008
Exam 1A
Name_
1(8). 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 s
Math 212
Spring 2008
Exam 3A
Name_
1(15). a. Use the space at right to solve 18 33
using the partial-products algorithm. Show
all steps clearly.
Label each partial product with a capital
letter (A, B, etc.)
b. On the grid below, outline an area to illustr
Math 212
Fall 2007
Exam 2A
Name_
1. The rectangle shown below is 8/5 of a whole. Indicate what size the whole would be.
2. Jenny misread her recipe: it called for 2/3 cup of milk, but she only put in 1/4 cup. What
fraction of the needed amount did she put
Math 212
Exam 2A
Spring 2008
Name_
1. Assume the rectangular array shown is 5/6 of another array.
Sketch the other array.
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2. You are ma
Math 212
Fall 2007
Exam 1A
Name_
1(6). Use listing method to find LCM(45, 72).
2(6). Use the prime factorizations to find GCF( 34.52.75.11,
197
37.53.73 ).
/2048 have a terminating decimal representation? Explain why, based on prime
3(8). Does
factorizati
Math 212
Exam 3A
Fall 2007
Name_
1. Draw sketches to show each of the following. For each part (a and b) you should give one
sketch that can be interpreted both ways. Use the meaning of multiplication as in our text:
A x B means A groups with B in each. I
Math 212
Final Exam
Spring 2008
Name_
Needed: five answer sheets
Instructor_
Do on Answer Sheet #1:
1(8). a. Find the prime factorization of 2295.
b. Will 2295n be an even number for some counting number n?
c. Is it possible to find a number k such that G
Math 212
Spring 2005
Final Exam B
Name_ Instructor_
Do on Answer Sheet #1:
1. a(3). Find the prime factorization of 72.
b(4). Use the prime factorization to determine how many divisors 72 has. Explain
why your calculation is appropriate. Do not just state
Math 212 Exam 3A Spring 2014
1. (20) a) Use (an appropriate portion of) the grid below to sketch an area model to illustrate the multiplication
2 1
1 E X 2 Z , You may subdivide boxes as needed. Label your sketch clearly. Assume each square below has
dime
Math 212 Final ExamA Fall 2013
v , »
Name 5V7b9w' W Instructor
1(10). Label each of the number lines below in a Way that is consistent with place value. Make sure the longer tick
marks stand for larger place values. V
337? (3 him 3.5151 Ti V V 3.99
Math 212
1(12). Let
Exam 1A
9
5
Fall 2013
Name_
11 .
a. List three prime factors of n.
b. List 3 composite factors of n.
c. Give the prime factorization of
.
2(8). Suppose that a number is divisible by 5 and also divisible by 6. Will it also be divisible
Math 212 Exam 1A Spring 2014 Name
1. 31(3). Find the prime factorization of 84. Show work.
gag .2: 21,33»
/.\ _
.112 if?
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3% 972i
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3 :2:
b(5). Using your answer to part a, nd the prime factorization of 842. Explain briey how you used your
answer fro
Math 212
Exam 1A Spring 2014
Name_
1. a(8). Find the prime factorization of 84. Show work.
b(5). Using your answer to part a, find the prime factorization of 842. Explain briefly how you used your
answer from part a.
c(6). Suppose N is some number such th
Math 212
Exam 1A (chaps 8, 1, 2) Fall 2014 Name_
1. a(7). Find the GCF(4620, 1020) using the slide method. Show all work.
b(7). Write a word problem whose answer is the LCM(6, 9).
2. a(3). Assume the base blocks on the right are simplified diagrams of bas
Math 212
Exam 2A
Spring 2014
Name_
1(12). Add 144 +65 using base ten blocks to show each step alongside the paper-and-pencil algorithm. Be sure
to show each regrouping step. Use the simplified versions of the blocks as shown to the right.
Pencil-and-Paper
Math 212
Exam 3A
Fall 2013
Name_
1 . Clearly indicate the factors and
1(20). a. Use the grid below to make an area diagram for the product 2
shade the portion of the grid that corresponds to the product. (Assume each square in the grid given below is a
1
Math 212
Exam 3A
Spring 2005
Name_
Do on Answer Sheet #1:
1(10). a. Use the meaning of multiplication and a diagram to illustrate 2 x 5 = 5 x 2.
Give one diagram that can be seen both ways.
b. Use the meaning of multiplication and a diagram to illustrate
Math 212
Spring 2005
Exam 2A
Name_
Do on this sheet:
1(4). The rectangular rug below is 2/3 of another (original) rectangular rug. Carefully
sketch the size of the original rectangle. Make sure your picture shows the relative sizes
clearly.
2(20). On the
Math 212
Final Exam A
Fall 2011
Name_
1. Let k = 325.75112176
a. Is k even or odd? Explain.
b.
Is 49 a factor of k? Explain.
c.
If GCF(k, m) = 15 and m > 100 give a possible value for m.
d.
Is it possible for 13 to divide evenly into kn for some value of
Math 212
Spring 2011
Exam 2A
Name_
Please copy and sign: I pledge on my honor that I have not given or received any unauthorized assistance
on this exam.
1(14). a. Write a word problem that naturally gives rise to the expression 4 (3). Do not change to
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