vocabulary
2 digit addition
3 digit addition
4 digit addition
5 digit addition
100
anything plus zero equals the number again
What is the identity property
100
66+29
What is 95
100
123+100
What is 223
100
1,000+2,000
What is 3,000
100
10,000+10,000
What is 20,000
200
making a smart guess at what the answer of a problem is
What is estimation
200
42+18
What is 60
200
200+450
What is 650
200
1,250+2,250
What is 3,500
200
15,000+11,000
What is 26,000
300
the order of the numbers in a problem does not matter, the answer will stay the same
What is commutative property
300
73+65
What is 138
300
778+635
What is 1,413
300
5,000+2,369
What is 7,369
300
25,000+25,000
What is 50,000
400
no matter how you group a set of numbers, the answer will be the same
What is associative property?
400
38+72
What is 110
400
826+639
What is 1,465
400
5,458+2,256
What is 7,714
400
75,000+10,000
What is 85,000
500
to move the tens place value number over to the next place value
What is regrouping
500
98+89
What is 187
500
998+889
What is 1,887
500
8,889+9,999
What is 18,888
500
99,999+89,999
What is 189,998
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