Vocab
Name the property that adds zero.
(Hint: You're looking in the mirror.)
Identity Property
5 + 10 = 15
10 + 5 = 15
Commutative
5 more than 156
161
52 + 96
148
Name the property that can change the order numbers are added but you still get the same answer.
(Hint: I say tomato you say tomatoe.)
Commutative Property
123 + 0 = 123
Identity
10 more than 567
577
124 + 256
380
What do you call a missing number in a math problem?
Unknown
(1 + 4) + 5 = 10
Associative
1 more than 3,999
4,000
1,234 + 567
1801
Name the kind of math that you can easily do in your head.
Mental Math
233 + 234 = 467
234 + 233 = 467
Commutative
100 more than 1
101
4,592 + 3,988
8580