MATH 1350 – Final Exam, 2026 – Fully Worked Practice
Exam
Commutative property of addition - correct answer ✔✔ they are homies. if a and b are whole
numbers, then a+b= b+a
ex: 9+2= 2+9, (3+8)(3+4)= (8+3)(3+4)
Associative property of addition - correct answer ✔✔ if a, b and c are whole numbers then
(a+b)+c= a+(b+c)
ex: (97+19)+3= 97+(19+3)
Identity property of addition - correct answer ✔✔ if a is a whole number a+0= 0+a= a 0 is called
the "additive identity" ex:5+0=0
The closure property of addition - correct answer ✔✔ if a and b are whole number tehn a+b is a
whole number (if you add two whole numbers, a unique sum will exist and it will be a whole
number)
Missing Addend - correct answer ✔✔ one of the parts is missing from the whole
Fact Families - correct answer ✔✔ a+b=, b+a=c, c-a=b, c-b=a 2+5=7, 5+2=7, 7-5=2 7-2=5
expanded algorithm with partial sums - correct answer ✔✔ 16+25= 16
+ 25
_______
11
30
, ________
40
partial partial sums - correct answer ✔✔ 1) 16+25
2)16+20+5
3)36+5=41
Left to right algorithm - correct answer ✔✔ 165+227=
1) 100+200=300
2)60+20= 80
3)5+7=12
Equal addends algorithm: - correct answer ✔✔ 533 +6 539 add the numbers to get a zero so it is
eas-
-214 +6 - 220 ier to subtract.
_______ _______
319
addition with Base Five - correct answer ✔✔ 0,1,2,3,4,10,11,12,13,14,20,21,22,23,24 etc..
234
+ 211
_______
1200
repeated addition - correct answer ✔✔ a) 3* 5= 5+5+5 we see 5 three times
Exam
Commutative property of addition - correct answer ✔✔ they are homies. if a and b are whole
numbers, then a+b= b+a
ex: 9+2= 2+9, (3+8)(3+4)= (8+3)(3+4)
Associative property of addition - correct answer ✔✔ if a, b and c are whole numbers then
(a+b)+c= a+(b+c)
ex: (97+19)+3= 97+(19+3)
Identity property of addition - correct answer ✔✔ if a is a whole number a+0= 0+a= a 0 is called
the "additive identity" ex:5+0=0
The closure property of addition - correct answer ✔✔ if a and b are whole number tehn a+b is a
whole number (if you add two whole numbers, a unique sum will exist and it will be a whole
number)
Missing Addend - correct answer ✔✔ one of the parts is missing from the whole
Fact Families - correct answer ✔✔ a+b=, b+a=c, c-a=b, c-b=a 2+5=7, 5+2=7, 7-5=2 7-2=5
expanded algorithm with partial sums - correct answer ✔✔ 16+25= 16
+ 25
_______
11
30
, ________
40
partial partial sums - correct answer ✔✔ 1) 16+25
2)16+20+5
3)36+5=41
Left to right algorithm - correct answer ✔✔ 165+227=
1) 100+200=300
2)60+20= 80
3)5+7=12
Equal addends algorithm: - correct answer ✔✔ 533 +6 539 add the numbers to get a zero so it is
eas-
-214 +6 - 220 ier to subtract.
_______ _______
319
addition with Base Five - correct answer ✔✔ 0,1,2,3,4,10,11,12,13,14,20,21,22,23,24 etc..
234
+ 211
_______
1200
repeated addition - correct answer ✔✔ a) 3* 5= 5+5+5 we see 5 three times
