Partial Products/Area Models
Using partial products, find the product of 27 x 15
405
Using traditional algorithm find: 18 x 13
Explain to your teacher how to solve
234
What is the first thing you do to the numbers in distributive property?
For example, if I was solving 13 x 21, what should I do to make multiplying mentally easier?
Our school has 30 students in each classroom. If there are 30 classrooms, how many students attend our school?
900 students
Using partial products, find the product of 18 x 24
When multiplying 32 x 14, why do we put a zero under the 8? Show your work and explain.
448
Using distributive property, solve: 27 x 39
(20 + 7) x (30 + 9)
(20 x 30) + (20 x 9) + (7 x 30) + (7 x 9)
600 + 180 + 210 + 63
1, 053
Your teacher uses about 18 packs of post-it notes each year. Each pack contains 22 post-its. About how many post-its are used each year?
Round 22 to 20
18 x 20=360
About 360 post-its
Which one of these shows the correct partial products for 34 x 21?
A) 650 + 30 + 80 + 4
B) 600 + 30 + 80 + 4
C) 600 + 35 + 8 + 4
D) 60 + 30 + 80+ 4
B) 600 + 30 + 80 + 4
Using traditional algorithm find: 36 x 27
Explain to your teacher how to solve
972
Using distributive property, solve: 67 x 83
(60 + 7) x (80 + 3 )
(60 x 80) + (60 x 3) + (7 x 80) + (7 x 3)
4,800 + 180 + 560 + 21
=5,561
There are 44 weeks in a school year. How many week of school are there in 12 years?
528 weeks
Draw an area model to solve for: 39 x 47
Show your teacher the model you drew or explain how to draw it.
2,028
Using traditional algorithm find: 68 x 87
Explain to your teacher how to solve
5, 916
Fill in the missing parts in this distributive property equation:
77 x 65
(__+7) x (60 + __)
(70 x __) + (__x5) + (7 x 60) + ( __ x __)
(70+7) x (60 + 5)
(70 x 60) + (70 x5) + (7 x 60) + ( 7 x 5 )
Ms. Colley is in charge of the chess club. Each of the 67 students on the chess team needs to play 15 games each year. How many games will the whole chess team play each year?
1,005
Draw an area model to solve for: 68 x 56
Show your teacher the model you drew or explain how to draw it.
3, 808
Explain the last step when using the traditional algorithm to solve: 95 x 92
The last step is to add your products. Your final answer is 8,740
Select the equation that shows how to use distributive property to solve: 89 x 91
A) (80 x 90) + (80 x 1) + (9 x 90) + (9 x 80)
B) (80 x 9) + (80 x 1) + (9 x 90) + (9 x 80)
C) (80 x 90) + (80 x 1) + (9 x 90) + (1 x 90)
D) (80 x 90) + (80 x 1) + (9 x 90) + (9 x 1)
D) (80 x 90) + (80 x 1) + (9 x 90) + (9 x 1)
A cup costs 79 cents. How much will 24 cups cost?
1,896