O bserve
the problem.
"I need to highlight each part of the
problem. I will highlight the numbers in the parentheses in yellow,
the addition sign in purple, the division sign in red, the exponent
in blue, and the subtraction sign in pink."
R ead
the signs.
"I have a set of numbers in
parentheses, 42. I have a 9 in front of the parenthesis, so that
means nine times the number inside the parentheses. I also have an
exponent, 2^{2}, which means 2 to the second power. I have
an addition sign between the parentheses and the 12, and a division
sign between the 12 and the exponent The last operation sign is a
subtraction sign."
D ecide
which operations to do first.
"I'll need to use the rule of
order to decide which operations to do first. Because the problem
has parentheses, I'm going to use the rule: Pew Eew! Many Dogs Are
Smelly! That means that I will do the operation in the parentheses
first, (Pew), then I'll solve the exponent (Eew), then I'll do any
multiplication operations (Many), then division (Dogs), then addition
(Are) and finally subtraction (Smelly)."
E xecute the rule
of order.

Step 1: Pew  Parentheses
first.


Step 2: Eew  Exponents









"So, to use the rule order, I'll do
the operation in the parentheses first. 4 minus 2 is 2. I am going
to cross out the parentheses and write the answer 2 underneath it.
Next I will do the exponent. 2 to the 2nd power is 4. I will cross
out the exponent and write a 4 underneath it. I have done step 1 and
step 2. Now I have 9 times 2 plus 12 divided by 4. To do step 3, I
will multiply 9 times 2. 9 times 2 is 18. I will cross out the 9 (2)
and write 18. Now I need to do step four, which is divide. I need
to divide 12 by the 4. 12 divided by 4 is 3. I will cross out the
12 / 4 and write 3. Now I will do step five. I will add 18 and 3.
18 plus 3 is 21. Step six is subtract. 21 subtract 1 is twenty. 20
is the answer to this problem."
R
elax, you're done!
