Factors and Multiples
List the factors of 48
1, 2, 3, 4, 6, 8, 12, 16, 24, 48
4,534 x 6
27, 204
459/9
51
If 312 is multiplied by 10 the 1 will now be in what place?
The hundreds place
Jeffrey picked plums off a tree in the yard. He gave 57 plums to a neighbor and had 24 left. Which equation, when solved, will tell how many plums Jeffrey picked?
A. p + 57=24 C. 81 - p=24
B. 57/24 = p D. p - 57=24
D. p - 57=24
List the first 5 multiples of 25
25, 50, 75, 100, 125
73 x 89
6,497
365/5
73
If 6,130 is divided by 10 the 3 will now be in what place?
The ones place.
Over the summer Jack read 9 books. Sara read 4 times as many books as Jack. How many books did Sara read.
Sara read 36 books.
Is 19 a prime or composite number? Why?
19 is a prime number because it only has 2 factors, 1 and itself. Only 1x19=19
526 x 4
2,104
484/3
161 r1
4,356 x 100
435,600
For the canned food drive, 3 students each collected the same amount of food. They collected 12 cans in all. Which equation, when solved, will tell how many cans of food each student collected?
A. 3 + c=12 C. 3 x 12=c
B. 3 x c=12 D. 3/c=12
B. 3 x c=12
What is the difference between factors and multiples?
Factors are numbers you multiply to get to another number and multiples are numbers you get when you skip count by a certain number
Logan bought 25 packages of cookies. Each package had 83 cookies. How many cookies did Logan buy?
Logan bought 2,075 cookies.
346/6
57 r4
A farm is 10 times as large as the park. If the farm is 3,000 acres, how big is the park?
The park is 300 acres.
Maci trained 6 times longer than Kasey. Maci trained for twelve weeks. How long did Kasey train? How long did they train altogether?
Kasey trained for 2 weeks. Altogether they trained for 14 weeks.
Is 64 a prime or composite number? Why?
64 is composite because it has more than 2 factors.
Mr. Smith wants to replace the school's footballs. Each football cost $9 and he wants to order 234. How much will it cost?
It will cost $2,106.
932/4
233
What is the value of the 5 after you divide 45,690 by 10?
500
Dedra got out all of her yellow blocks. She mixed them together with her 9 green blocks and counted 60 blocks in all. Which equation, when solved, will show how many yellow blocks Dedra has?
A. y x 9=60 C. 60 x 9=y
B. y/9=60 D. y + 9=60
D. y + 9=60