1. Math Review
Unit 1 Investigations

2. Prime and Composite Numbers
Prime Numbers: ONLY have two factors of one and itself.
Practice Problem Question: Which of the following Numbers are prime? 24 13 16 9

3. Prime and Composite Numbers
Composite Numbers: Have MORE than two factors.
Practice Problem Question: Which of the following numbers is a composite number? 7 5 30 19

4. Word Problems
Tip: Word problems do not have to be overwhelming. Take a deep breathe and visualize the problem in your mind. Don’t forget to reread the problem if you need to for comprehension.
Let’s Practice Word Problems!!!!

5. Practice One
Part A:
Jordyn always takes the same route when she walks her dog. First, she walks 7 blocks to the park. Then she walks 9 blocks to the elementary school. How many blocks does Jordyn's dog walk each day?
Part B:
If Jordyn decides to walk her dog twice a day for ten days, how many blocks will have Jordyn walked her dog?

6. Practice #2
In the magazine aisle at the grocery store there are 17 rows of magazines. In each row there are 13 magazines. How many magazines are in the aisle?

7. Practice #3
Rebecca babysat for 15 weeks over the summer. She earned $75 each week. How much did Rebecca earn in all?

8. Challenge Problem!!!
8 ghouls each had 8 hands. Each hand had 8 warts and each wart had 8 hairs. How many hairs were there?

9. Spiral Review: Properties
 Which of the following expressions would go in the  to demonstrate the associative property of multiplication?
12 × (8 × 14) =
(12 + 8) × 14
(12 × 8) × 14
( ) + 8
12 × (14 × 8)

10. Sprial Review: Properties
Which property of whole numbers is demonstrated in the number sentence below? =
Commutative property of addition
Identity property of addition
Commutative property of multiplication
D. Associative property of addition

11. Spiral Review: Properties
Which number sentence below demonstrates the identity property of multiplication?
16 × 18 = 18 × 16
( ) + 0 =
(16 × 18) × 1 = 16 × 18
( ) × 0 = 0

12. Spiral Review: Place Value
Which number is greater than ?

13. Spiral Review: Place Value
Which statement below is true?
375,897 > 375,899
245,717 < 245,599
485,590 > 485,499
179,990 < 178,995

14. Spiral Review: Expanded Notation
Write in Standard Form:
, =
6, =
Write in Expanded Form:
4. 1,212.45