1. Multiplication Let’s Model
Arrays, Base-10, Area Model, Partial Products, # Sentence

3. ARRAY
An arrangement of objects in rows and columns.
3 x 4 = 3

4. Directions: Find the word below that is WRONG
Directions: Find the word below that is WRONG! Cross it out and write the correct word!

5. Zeroes Let’s Practice 4x5= ____ 4x50=____ 4x500=_____
Practice: pg and pg

6. 1 Digit by 1 Digit

7. Abby bought 3 packs of gum. There are 5 sticks of gum in each pack
Abby bought 3 packs of gum. There are 5 sticks of gum in each pack. How many sticks of gum are there all together?

8. The answer is:
15 sticks of gum

9. For her birthday party treats she bought her 6 friends each a package of Starburst. Each package had 7 starburst candies in it. How many total pieces of Starburst were there?

10. The answer is:
42 pieces of Starburst!

11. 2 digit by 1 digit and 3 digit by 1 digit

12. Caleb’s mom let him have 5 friends to sleep over
Caleb’s mom let him have 5 friends to sleep over . Each friend brought 14 baseball cards to trade. How many baseball cards were there in all?

13. The answer is:
70 cards

14. AREA MODEL
PARTIAL PRODUCTS

15. Sara bought 6 cartons of eggs. They came with a dozen eggs in a carton
Sara bought 6 cartons of eggs. They came with a dozen eggs in a carton. How many eggs did she buy?

16. The answer is:
72 eggs

17. Base 10 blocks
Let’s practice a few together.
21x4=
12x5=
13x3=
24x3=

18. The fourth grade students of Norton Elementary are traveling on 4 buses for their field trip. If each bus has 27 fourth grade students on it, approximately how many fourth grade students are going on the field trip?

19. The answer is:
30 x 4 = You have to ROUND the 27 to 30 since the question asked for “approximately” how many!

20. Each mini M&M bag holds 9 M&M’s. If there are 122 bags
Each mini M&M bag holds 9 M&M’s. If there are 122 bags. How many total M&M’s will there be?

21. The answer is:
1,098 M&Ms

22. The farmer planted 223 rows of corn. Each row had 7 corn plants
The farmer planted 223 rows of corn. Each row had 7 corn plants. How many corn plants are there in all?

23. The answer is:
1,561 corn plants!

24. Box Method
Let’s try a few together:
22x3=
17x4=
31x12=

25. The teacher bought 18 boxes of crayons. Each box had 8 crayons
The teacher bought 18 boxes of crayons. Each box had 8 crayons. About how many crayons did she buy in all?

26. The answer is:
160 crayons because it asks you to estimate… Round 18 to 20 and then 20 x 8 = 160!

27. The teacher arranged her desks in 12 rows. Each row had 9 desks
The teacher arranged her desks in 12 rows. Each row had 9 desks. How many desks are there in all?

28. The Norton PTA was setting up chairs for a meeting
The Norton PTA was setting up chairs for a meeting. They put 324 rows and each row had 6 chairs. How many chairs were used in all?

29. Partial Products
Practice on Pg

30. 2 Digit by 2 Digit
As you work through the following problems. Really focus on the steps as they solve the problem.

31. Area Model Pass out graph paper.
1st you put the numbers in EXPANDED form.
2nd: Multiply the tens by the tens(20x10)
3rd: Multiply the tens by the ones (20x3) and color in pink.
4th: Multiply ones by tens (3x10) and color in blue.
5th: Multiply the ones (3x3) and color in yellow in the grid

32. Standard/Expanded Algorithm
2-digit by 1-digit
2-digit by 2-digit
Let’s Practice: More practice:
52 x 6= pg. 207 and 265
37 x 22=

33. There are 29 children in the classroom, each student will get 24 pencils. How many pencils will the teacher have to give out?

34. 3rd Let’s make an AREA MODEL!
1st: Let’s write our number equation/sentence.
2nd: Put in expanded form.

35. Mrs.Dreher’s class is selling boxes of cookies for the school fundraiser. There are 22 students in Mrs.Dreher’s class. If each student sells 67 boxes of cookies, is 1,400 boxes of cookies a reasonable estimate?

36. 34 kids each have 24 Pokemon cards
34 kids each have 24 Pokemon cards. How many Pokemon cards do they have in all?

37. Adam sold 47 boxes of doughnuts for his school’s fundraiser
Adam sold 47 boxes of doughnuts for his school’s fundraiser. Each box contained two dozen doughnuts. How many doughnuts did he sell?

38. On a bus, there can be 2 kids to a seat. There are 23 rows of seats
On a bus, there can be 2 kids to a seat. There are 23 rows of seats kids sit together on the right and two kids sit together on the left. If you count the bus driver who has his own seat, how many people can fit on the bus?

39. There are 42 calories in each mini candy bar. If Mrs
There are 42 calories in each mini candy bar. If Mrs. Wheeler eats 17 candy bars in a week. How many calories did she eat?

40. Mrs. Dobson has 36 red marbles in each shoe box
Mrs. Dobson has 36 red marbles in each shoe box. She has 16 of these shoe boxes in her garage. How many red marbles does she have?

41. Design Your Own Multiplication Problem
Key Words
In all
All together
Each

42. FACTOR & PRODUCT
Factor- A number that is multiplied by another number to find a product.
Product- The answer to a multiplication problem.
5 x 7 = 35
5 and 7 are factors.
35 is the product.

44. MULTIPLE
The product of two counting numbers is called a multiple of each of those numbers.
EX. The multiples of 3 is any product that has a 3 as a factor.
3, 6, 9, 12, 15, 18, 21, 24, 27, 30…

45. Square Numbers What is a square number?
How can we use multiplication to find square numbers?

46. SQUARE NUMBER
The number you get when you multiply a factor (integer) by itself.
Example: 4 × 4 = 16, so 16 is a square number.

47. PRIME
A Prime Number can be divided evenly only by 1, or itself. And it must be a whole number greater than 1.
Example: 5 can only be divided evenly by 1 or 5.

48. Challenge

49. The park has 16 sprinklers
The park has 16 sprinklers. They can spray 50 liters of water on the grass in one minute. How many liters can they spray in 38 minutes?

50. You can buy 7 pounds of bananas for 2 dollars and 3 boxes of cereal for 5 dollars. How much would it cost to get 14 pounds of bananas and 6 boxes of cereal?

51. Alex is planning to make 8 bracelets. He will use 5 beads for each one
Alex is planning to make 8 bracelets. He will use 5 beads for each one. He wants to sell all the bracelets for 10 dollars each. How many more beads would he need if he decided to make 10 bracelets with 6 beads on each one?

52. Javier and his friends make two large banners for the football game
Javier and his friends make two large banners for the football game. Javier buys 6 rolls of paper. Each roll contains 12 feet of paper. They tape the rolls of paper together end to end to make two banners that are the same length. How long is each banner? (What would be the approximate answer?)

53. Teresa paints a mural made with 7 tiles that are each 14 inches long
Teresa paints a mural made with 7 tiles that are each 14 inches long. First, she paints a dark background covering half the length of the mural. How long is the painted part?

54. A photography book contains 9 chapters. Each chapter is 14 pages long
A photography book contains 9 chapters. Each chapter is 14 pages long. Every odd-numbered page has 13 pictures. Every even-numbered page has 16 pictures. About how many pictures are in a chapter?______ Book? _______

55. Mrs. McGraw’s garden is a rectangle 10 feet wide and 13 feet long
Mrs.McGraw’s garden is a rectangle 10 feet wide and 13 feet long. She wants to put a fence all around the garden. The fencing comes in 2-foot sections that cannot be cut. What is the smallest amount of fencing she will need?

56. Last year, Tia bought 2 sheets of 48 stickers from the craft store every month. She had 200 stickers left at the end of the year. Bridget bought 4 sheets of 13 stickers twice a month during the year. She had 296 stickers left at the end of the year. Which girl used more stickers?

57. The cook at Petra’s Pancake House makes 9 pancakes in a minute
The cook at Petra’s Pancake House makes 9 pancakes in a minute. Estimate, to the nearest thousand, the number of pancakes she makes in five 2-hour shifts.

58. Abigail and her friends made pancakes to serve at the school fundraiser. They made 112 trays of pancakes with 2 rows of 5 stacks of pancakes on each tray. There were 3 pancakes in each stack. Abigail says they made about 3,000 pancakes. Is her estimate reasonable?

59. Juan is going to paint a room
Juan is going to paint a room. Two of the walls are 10 feet wide and 8 feet high. The other two walls are 8 feet wide and 8 feet high. The room has two windows the are each 2 feet wide and 4 feet high. There is also a door that is 3 feet wide and 7 feet high. Juan plans to use paint that cover 100 square feet per quart. How many quarts of paint will Juan need to paint his room?