Search Header Logo
Kellan And Desmond Variables

Kellan And Desmond Variables

Assessment

Presentation

Mathematics

7th Grade

Medium

Created by

Desmond Reynolds

Used 6+ times

FREE Resource

8 Slides • 8 Questions

1

Word Cloud

How do you feel about math in general? in 2 words

(please refrain from saying inappropriate things your answers can be seen)

2

Here's an example of algebra that we've learned about in the past

​Joshua has 10 apples in his fridge he gains 2 apple every day for healthy eating.

3

​All of these are correct to explain it you can do this

​10+2d​

​Because he has 10 apples and gains 2 every day.



Here what you should remember

​starting number of apples

​how much he gains

the days

​To solve it here's what you do

​ Multiply the 2 by any number. And
anything above 10 AND a multiple of 2 can be the answer to this expression.

​10+2(20)=50

​50 just one of the many numbers you
can put in ANY expression.

​For Example

​​10+2d

4

Multiple Choice

10+2(d)=?

d=6

1

22

2

20

3

16

4

18

5

24

5

Let's do a example with subtraction since that was addition

​​​Jessica gets 10 dollars for every A and -2 for every grade below B

6

​​Jessica gets 10 dollars for every A and -2 for every grade below B

10A-2B

​For example lets plug in 5 for A's and 3 for below B

There are multiple steps to doing this

​Step 1

Plug in your Variables there are infinite possibilities
but lets go by the example

​10(5)- 2(3)

​Step 2

​Do the math and multiply the variables by the numbers

​10x5=50
2x3=6

Put it into an equation
50-6

​Step 3

​ Step 4

Solve it

​50-6=44

7

Now we'll teach you how to write an expression

​write the equation while we go through it

8

There are 4 steps to writing expressions

​Johnathan has 10 gallons worth of juice in his fridge. He and his family drinks 2 every day collectively.

Since he started with 10 gallons we will start the expression with 10 because that's the number of gallons he has

​Now since the gallons are being drunk that means they're being taken away from which means we use subtraction

​Because the gallons drank is 2 we take away 2 but there needs to be a letter to represent the gallons drank which is why we add the variable D

​Step 1

​Step 2

​Step 3

​Step 4

9

So the answer would be 10-2d
(doesn't really matter what letter you use since they're all correct but d is the best to represent drank

10

​Now it's time to show what you know

11

Math Response

Write an equation for this:

Joan has 100 inches of yarn she cuts 4 inches for arts and crafts. Write an equation for this.

The variable is C any other letter will count be wrong for some reason

Type answer here
Deg°
Rad

12

Multiple Choice

10+2d                 d=610+2d\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ d=6

1

30

2

2

3

80

4

60

13

Multiple Choice

5(4)-8(2)=

1

10

2

2

3

4

4

12

14

Fill in the Blank

15+4(y)

What number would make this 35?

Hint: y isn't a even number.

15

Math Response

Tyrone earns 5 dollars for every hour he works but 3 dollars for hour he slacks off

Write an expression for Tyrone working 3 hours

but slacking off for 2

W=works

S=Slacks off

Hint: Use multiplication not the variables

5W-3S

Type answer here
Deg°
Rad

16

Poll

Rate Our Teaching

Terrible

Bad

Mediocre

Great

Perfect

How do you feel about math in general? in 2 words

(please refrain from saying inappropriate things your answers can be seen)

Show answer

Auto Play

Slide 1 / 16

WORD CLOUD