Answer:
Step 4
Step-by-step explanation:
Given: Steps used by Shelly to evaluate the expression
To find: step that includes Shelly's mistake
Solution:
According to PEMDAS,
P denotes Parentheses
E denotes Exponents
M denotes Multiplication
D denotes Division
A denotes Addition
S denotes subtraction
Step 3 is and step 4 is
In step 4, first subtraction operation has been applied before the division operation.
There is a mistake in step 4 as according to PEMDAS, first -20 should be divided by 5 then 1 should be subtracted from the resultant number.
Answer:
13.
12.
11.
10.
9.
8.
7.
6.
5.
4.
3.
2.
1.
DON'T GET HOOKED
Step-by-step explanation:
13.
12.
11.
10.
9.
8.
7.
6.
5.
4.
3.
2.
1.
D O N ' T G E T H O O K E D
___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
6 1 10 3 9 8 7 13 2 12 11 5 4
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