please solve it I need to confirm my answers

Aug 24th, 2015
Anonymous
Category:
Other
Price: $5 USD

Question description

Perform the following tasks:
a. Do the following problems without a calculator. For each problem, display the answer you get. Then check on the calculator. Display your answers.
$\,\,\,\,\,\,\,\,\,$1a. $12 - 5 + 4 \times 3$
$\,\,\,\,\,\,\,\,\,$2a. $2 \times 5 - 6 + 2 \times 0$
$\,\,\,\,\,\,\,\,\,$3a. $16 \div 8 \div 4$
$\,\,\,\,\,\,\,\,\,$4a. $16 \div (8 \div 4)$
$\,\,\,\,\,\,\,\,\,$5a. $12 \div 2 + 9 \times 2$
$\,\,\,\,\,\,\,\,\,$6a. $(8 - 2) \div (2 + 1)$
$\,\,\,\,\,\,\,\,\,$7a. $2(5 + 9)$
$\,\,\,\,\,\,\,\,\,$8a. $2 \times 5 + 2 \times 9$
$\,\,\,\,\,\,\,\,\,$9a. $8 - 2^{3} + 1$
$\,\,\,\,\,\,\,\,\,$10a. $-3^{2}$
$\,\,\,\,\,\,\,\,\,$11a. $100 \div 5 \times 2$
$\,\,\,\,\,\,\,\,\,$12a. $100 \div 5(2)$
b. What steps did you use to get the answers?
c. What do we learn from the calculator about Order of Operations?
d. Why is it important to use Order of Operations?
e. Insert parentheses, if needed, in each of the following expressions so the answer for all problems will be the same.

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