Vocabulary
What is the definition of a factor?
numbers we multiply in a multiplication sentence
How many sides are there all together on two hexagons?
Write a multiplication sentence to show your work.
12 sides
2 x 6 =12
4 students collected pieces of trash. Each student collected 5 pieces of trash, how many pieces of trash did they collect?
Write a number sentence to show your work.
4 x 5 = 20
20 pieces of trash
For the field trip, the class rode in vans with 10 people in each van. How many people went on the field trip if they took 6 full vans?
Write a number sentence to show your work.
6 x 10 = 60
60 people
The book store is having a big sale! Every time you buy a book, you get a book for free. If I buy 16 books. how many books will I get all together?
32 books
What are the definitions of product and quotient?
Answer to a multiplication sentence, answer to a division sentence
What do you know about all the products of 2? What is the pattern? What do the numbers end in?
0, 2, 4, 6, 8
They are all even
What do you know about all the products of 5? What is the pattern? What do the numbers end in?
It is odd, even, odd, even
0, 5
What do you know about all the products of 10? What is the pattern? What do the numbers end in?
They all end in 0
They are all even
Mr. Shank wore brown pants to work one day, blue pants the next day, red pants the third day, and green pants on the fourth day. If this pattern continues, every four days, what will he wear to work on the TENTH day?
blue pants
What is the definition of a multiple?
List any four multiples of 5
The product of a given number and any other number.
5, 10, 15, 20, 25, 30, 35, 40, 45, 50
Ms. Park shared 24 pencils equally with Ms. Sue. Ms. Sue then shared her pencils equally with Mr. Shank. How many pencils does Mr. Shank have?
Write the number sentence to show your work.
24/2 = 12
12/2 = 6
6 pencils
A sunflower costs $7. Ms. Park wants to buy 4. Does she have enough money if she has four $5 bills?
Explain. Show your work.
No, she only have 4 x 5 = 20
She needs 4 x 7 = $28
Each time we go to the recycling center, our class takes 10 bags of cans. We will go three times this month, four times next month, and two times the following months. How many bags of cans will we take to the recycling center in these three months?
3 + 4 + 2 = 9
9 x 10 = 90 bags of cans
Ms. Park collected 60 notebooks. She keeps 10 notebooks for herself and divides the rest equally among her 5 friends. How many notebooks does each friend get?
60-10 = 50
50/5 = 10
10 notebooks each
What is a bar diagram?
How can we use it to help us solve problems?
Draw a bar diagram for 4 x 2
A bar diagram is an image that represents the math sentence. It helps us see and solve the math problems
When we multiply a number by 2, the product is always even. Is it the same if we divide a number by 2? Will the quotient always be even too? Explain. Give me examples.
No, because the quotient is the same as the factor.
14/2 = 7
18/2 = 9
Ms. Sue got 35 points on yesterday's 10-question math quiz. Each question is worth 5 points and there is no partial credit. How many questions did she miss?
She got 5 x ? = 35
7 questions correct
10 - 7 = 3 She got 3 questions wrong.
We need to use 60 nails to put up the frame around each window. There are 6 windows in the classroom and 1 window in the bathroom. How many nails will we use?
60 x (6 + 1) =
60 x 7=
420 nails
Ms. Robin is training for a bike race. She rides 10 miles one day, 20 miles the next day, and 30 miles the third day. If Ms. Robin continues this pattern, what is the total distance she will have ridden after 5 days?
10 + 20 + 30 + 40 + 50 = 150 miles
How can we use an array to help us solve a related multiplication and division problem?
Think about the rows and columnsThe rows and columns are the factors.
The total is the product/dividend
There are 7 boys and 4 girls in the Watson family. They all keep their gloves in 1 box in the closet. If each person has a pair of gloves, how many GLOVES are in the box?
Write a multiplication sentence to show your work.
( 7 + 4 ) x 2 = 22
22 gloves
For a craft, each student will need 5 rubber bands. There are 9 students. Rubber bands come in bags of 7. How many bags will be needed? How many rubber bands will be left over?
Show your work.
We need 5 x 9 = 45 rubber bands
7 x ? = 49
7 bags
There will be 49-45 = 4 rubber bands left
There are 5 classes that need to go on the field trip today. Each class has 7 students. If each van can take 10 students, how many vans will be needed? How many seats will be left?
Show your work.
5 x 7 = 35
10 x ? = 40
4 vans
40 - 35 = 5 seats left
The basketball team won their first game by 49 points, their second game by 42 points, and their third game by 35 points. If the pattern continues, how many total points will they have won by their fifth game?
49 + 42 + 35 + 28 + 21 = 175
175 points