QMI1500
Elementary Quantitative Methods
Department of Decision Sciences
Assignment 01 for Semester 01 2022 (compulsory)
Unique Number: 746455
DUE DATE: 28 February 2022
Important:
• This is a multiple-choice assignment that must be answered and submitted ONLINE.
• Always keep your detailed workings in a file to be able to compare your solutions to the ones
that will be published on the QMI1500 module site after the due date. Also, keep a copy of
the options you have chosen, in case of a query.
• The due date of this assignment is fixed. No extension can be granted because the solutions
will be posted on the QMI1500 module site shortly after the closing date.
Question 1
Solving
−7 − 3 × 2(−5) + 6 − 21 ÷ 3
Gives
[1] 26.
[2] 99.
[3] 95.
[4] 22.
Answer:
, This is an expression (A mathematical symbol, or combination of symbols, representing a value,
or relation. Example: 2 + 2 = 4.
Calculate the product or quotient.
−7 − 3 × 2(−5) + 6 − 21 ÷ 3
−7 − 3 × (2 × (−5)) + 6 − 21 ÷ 3
Remove the parentheses:
−7 − 3 × (−2 × 5) + 6 − 21 ÷ 3
Calculate the product or quotient:
−7 − 3 × (−10) + 6 − 7
Determine the sign for multiplication or division:
−7 + 3 × 10 + 6 − 7
Calculate the product or quotient:
−7 + 30 + 6 − 7
Calculate the sum or difference:
23 + 6 − 7
Calculate the sum or difference:
29 − 7
Calculate the sum or difference:
= 22
Elementary Quantitative Methods
Department of Decision Sciences
Assignment 01 for Semester 01 2022 (compulsory)
Unique Number: 746455
DUE DATE: 28 February 2022
Important:
• This is a multiple-choice assignment that must be answered and submitted ONLINE.
• Always keep your detailed workings in a file to be able to compare your solutions to the ones
that will be published on the QMI1500 module site after the due date. Also, keep a copy of
the options you have chosen, in case of a query.
• The due date of this assignment is fixed. No extension can be granted because the solutions
will be posted on the QMI1500 module site shortly after the closing date.
Question 1
Solving
−7 − 3 × 2(−5) + 6 − 21 ÷ 3
Gives
[1] 26.
[2] 99.
[3] 95.
[4] 22.
Answer:
, This is an expression (A mathematical symbol, or combination of symbols, representing a value,
or relation. Example: 2 + 2 = 4.
Calculate the product or quotient.
−7 − 3 × 2(−5) + 6 − 21 ÷ 3
−7 − 3 × (2 × (−5)) + 6 − 21 ÷ 3
Remove the parentheses:
−7 − 3 × (−2 × 5) + 6 − 21 ÷ 3
Calculate the product or quotient:
−7 − 3 × (−10) + 6 − 7
Determine the sign for multiplication or division:
−7 + 3 × 10 + 6 − 7
Calculate the product or quotient:
−7 + 30 + 6 − 7
Calculate the sum or difference:
23 + 6 − 7
Calculate the sum or difference:
29 − 7
Calculate the sum or difference:
= 22
