A) 3
B) 2
C) 13
D) 8

A) Numbers
B) Communitive
C) Zero
D) Associative

A) add any numbers
B) just add
C) switch the 10 for 6, then add 5 + 6 inside the parenthesis
D) first add what's inside the parenthesis

A) Zero is in the answer
B) Zero has a home
C) When adding or subtracting from 0, you get the same number
D) Zero is in the number

A) You must add #s in the order given
B) No matter what order you add #s, the sum is the same
C) Numbers are added
D) You add

A) Only combine #s if they're the same
B) A property
C) Combine #s in the parenthesis first
D) Combine #s that are the same

A) Switch 7 for 4, then add 3 + 4
B) Add 7+3
C) Add inside the parenthesis 7 + 3 to make 10, then add 4
D) Swith the 4 for 3, then add before adding 7

A) 8
B) 12
C) 10
D) 18

A) Add 10+ 5 + 4
B) Take a 10, then add 4 + 5 (double + 1) to equal 19
C) Add any #s to solve
D) Add 4 + 5 + 10 to get 19

A) 1st add 8 + 3, then add 2 + 7, then add sums together
B) Add the odd #s, add even #s, then add sums together
C) Make 10's (8 + 2) & (7 + 3), then add together
D) Add the numbers to get an answer