Factors and Multiples
What are the factors of 42?
1, 2, 3, 6, 7, 14, 21, 42
What are the prime numbers up to 20?
2, 3, 5, 7, 11, 13, 17, 19
Solve 48 x 25 using the breaking apart method.
1,200.
In the problem 613 ÷ 15, which number is the divisor?
15
What is 12,000 x 30?
360,000
What are the first 5 multiples of 18?
18, 36, 54, 72, 90
What are the properties of 81? Even or odd? Prime or composite? Square?
Odd, composite, square
Solve 82 x 43 using standard algorithm.
3,526
Solve 480 ÷ 15 using the multiplication strategy
32
Fill in the blank with ＞, ＜, or =.
39 x 10 ⬚ 120 x 4
＜
What is the prime factorization of 480?
2 x 2 x 2 x 3 x 4 x 5
Which number is NOT prime?
a) 23
b) 51
c) 41
d) 2
b) 51
Solve 294 x 36 by breaking apart.
10,584
2,132 ÷ 41
52
What is the 6th block in the multiple tower for 58?
348
What is the prime factorization of 1,000?
2 x 2 x 2 x 5 x 5
What are the first 10 square numbers?
1, 4, 9, 16, 25, 36, 49, 64, 81, 100
Solve 612 x 55 using standard algorithm
33,660
398 ÷ 12
33 R 2
Name all of the math teachers at EHS.
Ms. Bendich, Mr. Hayes, Mr. Cole
What factors do 24 and 60 have in common?
1, 2, 3, 4, 6, 12
What number is prime and square?
Trick question: There is none!
Use cluster problems to solve 47 x 22.
1,034
2,610 ÷ 54
48 R 18
How many seconds are there in an hour?
3,600 seconds.