Addition Properties
Which property was used above?
Commutative Property
10 more than 45,301
45,311
10 less than 56,780
56,770
Estimate. Round each number to the hundreds.
5,328 + 3,420
8,600
8,346 + 7,208
15,554
The sum of any number and 0 is the ______ property.
Identity Property
1 more than 12,349
12,350
67,009
Estimate. Round each number to the thousands
27,629 - 5,364
23,000
37,178 + 82,370
119,548
The order numbers are added does not change the sum is the _______ property.
Commutative Property
100 more than 45,690
45,790
1,000 less than 12,000
11,000
Estimate. Round each number to the hundreds.
4,127 + 2,666
6,800
15,789 + 22,503
38,292
The way in which numbers are grouped when added does not change the sum is the ______ property.
Associative Property
100 more than 67,888
67,988
100,000 less than 239,875
139,875
Estimate. Round each number to the thousands.
47,236 - 20,425
27,000
743,980 + 211,315
955,295
5,423 + __(a)___ = 9,840 + ___(b)___
a- 9,840
b- 5,423
10,000 more than 23,444
33,444
1,000 less than 50,409
49,409
Estimate. Round each number to the tens.
2,746 - 1,529
254,671 + 381,366
636,037