Questions[]
1) What is the associative property of addition?[]
A) x+y+z = (x + y) + (x + z)
B) x + y = y + x
C) x + (y + z) = (x + y) + z
D) x + (y + z) = (xy) + (xz)
Correct Answer: C
2) Which of these illustrates the associative property of multiplication?[]
A) 6 x (9 x 1) = (6 x 9) x 1
B) 6 x (91) = (69) x 1
C) 6 x 9 x 1 = 1 x 9 x 6
D) 6 (9 + 1) = (6 x 9) + (6 x 1)
Correct Answer: A
3) Rewrite (y x 6) x 5 using the associative property.[]
A) 65y
B) 30y
C) (y x 6) + (y x 5)
D) y x (6 x 5)
Correct Answer: D
4) Rewrite 4 x (7a) using the associative property.[]
A) 7 x 4a
B) (4 x 7 ) x a
C) 28a
D) 11a
Correct Answer: B
5) According to the associative property of addition, (k + 4) + 6 =[]
A) k + 4 + 6
B) (k + 4) + (k + 6)
C) k + (4 + 6)
D) 10k
Correct Answer: C
6) 2 x (4 x 6) =[]
A) 2 x 4 x 6
B) (2 x 4) x 6
C) 8 x 6
D) All of the above
Correct Answer: D
7) According to the correct order of operations, which task should you always do first?[]
A) Whatever's inside the parentheses
B) Multiplication
C) Addition
D) Subtraction
Correct Answer: A
8) What is (a x b) x c, if a = 11, b = 9, and c = 1?[]
A) 21
B) 99
C) 119
D) 81
Correct Answer: B
9) What is (x + y) + z if x = 21, y = 18, and z = 6?[]
A) 42
B) 41
C) 45
D) 43
Correct Answer: C
10) What is (a x b) x c if a = 2, b = 8, and c = 12?[]
A) 190
B) 191
C) 192
D) 193
Correct Answer: C