Prime and Composite
Finish the sentence
A prime number ______________________________.
Has only 2 factors
Is 15 even or odd?
odd
what operation should be done first?
30 / 2 - (5 + 2) +6
5+2
Dekarri practiced football for 12 hours each week for 18 weeks to prepare for the big game. About how many hours did he practice in all?
A. About 180 hours
B. About 30 hours
C. About 300 hours
D. About 220 hours
D. About 220 hours
what is 2,905 + 367?
3,272
Finish the sentence
A composite number __________________________.
Has more than 2 factors
Is the product of an even and odd number even or odd?
ex: 4 x 3 = 12 even
What operation should be done first?
65 - 12 + 12 x 6
12 x 6
During a normal day there are 782 passengers in average that are late for their plane. However, during the Christmas Holidays, there are 1,835 passengers that are late for their planes each day, which cause delays of 14 planes. How many more passengers are late for their planes during the Christmas holidays?
1,835 - 782 = 1,053 passengers
What is 7,607 - 295?
7,312
Is 21 prime or composite?
composite
Which of the following statements is true?
A. An odd number must have 2 or more digits
B. All odd numbers have a 7 in the ones place
C. An even number must have a 2 in the ones place
D. All even numbers are divisible by 2
D. All even numbers are divisible by 2
6 x 8 + 10
58
A full pack of crayons contains 8 crayons. If each of Mrs. Harris's 26 students needs to use 1 crayon simultaneously in an activity, how many full boxes of crayons will be used?
3 full boxes will be used
what number correctly completes the number sentence?
8(4+3)= ______ + 24
32
Which of the following numbers are prime? (You must get them all correct to get the points)
1 66 2 11 35 19
2
11
19
Which best describes the set of numbers?
25, 47, 39, 61, 63, 87
A. They are all even numbers
B. They are all odd numbers
C. Some are odd and some are even
D. None are even or odd
B. They are all odd numbers
48 / 6(14 - 3 x 3)
40
Juice boxes are sold in packs of six. If Mrs.Davis has 35 students who need juice how many boxes of juice will the cafeteria need to open in order to serve them?
A. 5 boxes
B. 6 boxes
C. 10 boxes
D. 35 boxes
B. 6 boxes need to be opened
what number correctly completes the number sentence?
2(5+6)= ______ + 12
10
Which of the following statements is true?
A. A number that has no other factors besides one and its self is composite
B. All odd numbers are prime
C. There are no prime even numbers besides the number 2
D. Any number that has a 3 in the ones place is prime
C. There are no prime even numbers besides the number 2
Identify the lists that have 2 odd numbers and 3 even numbers.
A. 17,19,11, 12, 21
B. 18, 21, 20, 44, 27
C. 97, 99, 10, 72, 24
D. 99, 36, 38, 59,61
E. 32, 40, 22, 91, 19
F. 58, 38, 60, 44, 21
B. 18, 21, 20, 44, 27
C. 97, 99, 10, 72, 24
E. 32, 40, 22, 91, 19
18 + 7 x 3 - (4 - 2)
37
Machen is buying juice boxes for their annual field day. Each pack of juice boxes costs $3.00. How many packs of juice boxes can Machen purchase with $212.00?
70 boxes
List all of the factors of 36
1,2,3,4,6,9,12,18,36