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100

Give the correct order of operations.

Brackets, Exponents, Multiplication OR Division, Addition OR Subtraction (bedmas)

100
9 - 3 x 2=12
Correct answer is 3. Do x then -, not - then x.
100

7(4) - 5

23


100

14 - 2 x 7

0

100

the temperature change in a chemistry experiment was -2 degrees c every 30 min. 

the initial temperature was 6 degrees C.

 what was the temperature after 4 h

- 10 degrees C

200

Why is it important to know BEDMAS as a mathematician?

So everyone can solve every problem the same (correct) way.

200

5 2 + 1=11

5 2 = 25, not 10. Correct Answer is 26.

200
7 + (2 x 4) - 1
14
200
49 ÷ (3+4) + 52
32
200

Are the brackets necessary here: (4 x 2) +7. Why or why not?

No because you would multiply first anyways

300
What do we do if there are more than step inside the brackets?
Continue to follow BEDMAS
300

32  - 6 = 0

3 2  = 9, not 6. Correct answer is 3

300
56 ÷ (4+4) + 32
16
300
5 + 14 ÷ 2 × 5
40
300

(+20) X (-1) =?


in repeated addition 

(-1)+(-1)= 2

400

Tell what 5 2 really means.

It means 5 x 5

400
4 + 5 + 7 - 3 x 2 = 26
You need to follow PEMDAS and do x first. Correct answer is 10.
400
20 – (5+3) x 2 + 4
8
400
(4-1)2 + (5+ 1)2
45
400

Name two operations that have the same priority

Multiplication and Division OR Subtraction and Addition

500

The problem was 20 - 5 x 2 + 3. My answer was 33. What did I do wrong?

I went from left to right without using the correct order of operations.

500

3-(-5)+ 8(4)=3-(-5)+(-32)


              =3-(-37)

              = 40

added before - anwer is 24

500
(5 x 4) – 6 ÷ 2 + 9
26
500
12 + 22 x 32 - 42
21
500

Keisha had $ 405 in her bank account.

in one month she made 4 withdrawals of $45 each.

whats is the balance of her account.

 write an integer expression to represent the problem.  solve the problem. how did you decide which operations to use? 


              wite on a piece of paper

405 + 4(-45);$225

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