Math 205 exam 2 Latest Update 2024-2025 Questions and 100% Verified Correct Answers Guaranteed A+
A can of corn costs .90. A can of blueberries cost $2.20.how man times greater is the cost of blueberries than the cost of corn? - CORRRECT
ANSWER: Partitive
Do and area model for 124x36 - CORRRECT ANSWER: (answer:4,464) #you can also do this like the box method of (100+20+4) x (30+6)
Do lattice method for 324x15. - CORRRECT ANSWER: (answer:4,860)
Frank is 8 and George is 3 times older than Frank. How old is George? - CORRRECT
ANSWER: Multiplication
George is 24 &Frank is 8. How many times older than Frank is George? - CORRRECT
ANSWER: Measurement
George is 24, which is 3 times older than Frank. How old is Frank? - CORRRECT
ANSWER: Partitive
How do you compensate for 8x18? - CORRRECT ANSWER: 20x8=160
2x8=16
160-16=144
How do you do a partial quotients algorithm? - CORRRECT ANSWER:
How do you do the equal addends algorithm? - CORRRECT ANSWER: Compensate by
adding to the top and bottom instead of borrow. ie 20-9 you would add ten to the 0 and ten to the 9 making it 2 (10)-19
How do you do the Left to right algorithm? (+&-) - CORRRECT ANSWER: solve addition or subtraction from left to right
How do you do the partial products algorithm? - CORRRECT ANSWER:
321x98=(8x1)+(8x20)+(8x300)+(90x1)+(90x20)+(90x300) =
8+160+2400+90+1800+27000=31458
How do you model with base ten materials 8x18? - CORRRECT ANSWER: Area model
How do you operate separately on tens and ones for 8x18? - CORRRECT ANSWER:
10x8=80 8x8=64 1 / 2
80+64=144
How do you use a doubling strategy for 8x18? - CORRRECT ANSWER:
18+18=36(1x8+1x8) 36+36=72(2x8+2x8) 72+72=144 (4x8+4x8) (4+4=8)
How does multiplication relate to division - CORRRECT ANSWER: fact families
7x3=21 3x7=21
21/3=7
21/7=3
In 23x7 in the standard algorithm, what does 161 represent? - CORRRECT ANSWER:
- groups of 23
In 23x17 in the standard algorithm, what does 230 represent? - CORRRECT ANSWER:
10 groups of 23
In 23x17 with the standard algorithm, where did the 2 carried over to the tens place
came from? - CORRRECT ANSWER: 7 groups of 3
Measurement division (make a question) - CORRRECT ANSWER: How many groups
are there?
Partitive division (make a question) - CORRRECT ANSWER: How many per group?
Write a division question that gives only the remainder - CORRRECT ANSWER: Sam
has 23 tortillas. He wants to share them evenly with his 3 friends so that no one has more than the other. How many tortillas will be left over?
Write a division question that makes a fraction - CORRRECT ANSWER: John has 26
brownies. He wants to share them evenly with his five friends. If they eat all of the brownies how many brownies did each of them have?
Write a division question that rounds down - CORRRECT ANSWER: John is selling
boxes of cookies, he sells 3 in each box. if he has 16 cookies how many boxes can he sell?
Write a division question that rounds up - CORRRECT ANSWER: There are 14
goldfish. John wants to put 3 goldfish in each bowl. How many bowls will he need to hold all of his goldfish?
C bar ' (x) - CORRRECT ANSWER: marginal average cost function
C bar (x) - CORRRECT ANSWER: C(x)/x average cost function
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