PRIME OR COMPOSITE
Is 13 prime, composite, or neither?
13 is **prime** because it has exactly two factors: 1 and 13.
Find one factor pair of 24.
One factor pair of 24 is **4 and 6** (also 1×24, 2×12, 3×8).
5, 10, 15, __
List the next 5 numbers in the pattern.
20,25,30,35,40
When is Mrs. Perlman's Birthday?
Today! January 22
Mia has 248 stickers. She gives 37 to her friend and then buys 56 more. How many stickers does she have now?
267
(248 − 37 = 211; 211 + 56 = 267)
Why is 1 neither prime nor composite?
**1** has only one factor (itself), so it cannot be prime (needs two) or composite (needs more than two).
How many factors does 36 have?
List Them
36 has **9** factors: 1, 2, 3, 4, 6, 9, 12, 18, 36.
Rule: Multiply 3
2, 6, 18, __
List the next 5 numbers in the pattern.
54,162,486
What is the name of Mrs. Perlman's pup? and cat?
Lucy and Benjamin
95 pencils are divided equally into boxes that hold 8 pencils each. How many full boxes can be made, and how many pencils are left over?
11 full boxes with 7 pencils leftover
(95 ÷ 8 = 11 R7)
Is 91 prime or composite? Explain.
**Composite**. 91 = 7 × 13, so it has factors besides 1 and itself.
List one factor pair of 18.
One factor pair of 18 is **3 and 6** (also 1×18, 2×9
Start at 4, add 7. What are the next 3 numbers?
**11, 18, 25**.
What is Mrs. Perlman's husbands name?
Justin
Is 73 divisible by 2?
No
What makes a number composite?
a) It has exactly two factors
b) It has more than two factors
c) It has only one factor
d) It is an odd number
What numbers multiply to make 56?
**7 and 8**. Other factor pairs: 1×56, 2×28, 4×14.
DAILY DOUBLE!
Describe the rule: 100, 90, 80, 70
**Subtract 10** each time.
What is Mrs. Perlman's Favorite sport team called?
Florida Panthers
Is 84 divisible by 3?
Yes
True or False
All even numbers are composite.
False
Find all factor pairs of 48.
**1×48, 2×24, 3×16, 4×12, 6×8**.
Is 92 divisible by 10?
No
What is Mrs. Perlman's Favorite TV Show?
Supernatural
Is 153 divisible by 9?
Yes