Show:
Addition Properties
Estimate
What's the Pattern
Add
Subtract
100
the property that says any number plus zero is itself

Identity Property

100

Estimate by rounding to the highest COMMON place value and adding.


46 + 21 = __________

50 + 20 = 70

100

Find the pattern

375, 475, 575, 675

+100

100

367 + 150

517

100

953 - 212

741

200

the property that states you can switch the numbers and get the same sum

commutative property

200

Estimate by rounding to the highest COMMON place value and adding.


587 + 364 = __________

600 + 400 = 1,000

200

Find the pattern

999/ 1,009/ 1,019/ 1,029

+10

200

1,976 + 243

2,219

200

542 - 238

304

300

the property that states that no matter how you group the addends, you get the same sum

associative property

300

Estimate by rounding to the highest COMMON place value and adding.


293 + 67 = __________

290 + 70 = 360

300

Find the pattern

761, 766, 771, 776

+5

300

6,386 + 1,297

7,683

300

607 - 534

73

400

Name the property:

54 + 31 = 31 + 54

commutative property

400

Estimate by rounding to the highest COMMON place value and adding.


386 + 53 = __________

390 + 50 = 440

400

Find the pattern

1,346/ 1,446/ 1,546/ 1,646

+100

400

10,234 + 12,462

23,696

400

8,070- 707

7,363

500

Name the Property:

6 + (3 + 2) = (6 + 3) + 2

associative property

500

Estimate by rounding to the highest COMMON place value and adding.


4,782 + 321 = __________

4,800 + 300 = 5,100

500

Find the pattern

238, 240, 242, 244

+2

500

72,531 + 13,645

86,176

500

60,000 - 8,257

51,742