Addition Properties
Fill in the blank AND name the property:
47 + ____ = 47
0, identity property
Round to the nearest tens and solve:
629 + 224
630 + 220 = 850
Use partial sums to add the equation:
115 + 450 =
100 + 400 = 500
10 + 50 = 60
5 + 0 = 5
= 565
26 + 39 + 40 + 12 =
117
Align and Solve:
1250 + 1330 =
2,580
Fill in the blank AND name the property:
14 + 29 + 7 = 7 + 29 + ____
14, Commutative
Round to the nearest hundreds and solve:
199 + 249
200 + 200 = 400
Use partial sums to solve the equation:
362 + 621
300 + 600 = 900
60 + 20 = 80
2 + 1 = 3
=983
Align and Solve:
317 + 120 + 250 =
687
Align and Solve:
2485 + 1352
3,837
What do both sides equal AND which property is being used?
(13 + 15) + 12 = 13 + (15 + 12)
Both sides equal 40, Associative property
Use front end estimation to solve:
167 + 423 + 499 =
100 + 400 + 400 = 900
Use partial sums to solve the equation:
555 + 434
500 + 400 = 900
50 + 30 = 80
5 + 4 = 9
=989
Align and Solve:
245 + 182 + 155 + 218 =
800
Align and Solve:
3678 + 2845
6,523
Solve the equation AND use the Commutative property to rewrite the equation TWO different ways:
30 + 21 + 15 + 5
71
Possible answers:
21 + 15 + 5 + 30
5 + 21 + 30 + 15
Round to the nearest tens AND nearest hundreds and solve:
523 + 277 =
520 + 280 = 800
500 + 300 = 800
Use partial sums to solve the equation:
117 + 233 + 213
100 + 200 + 200 = 500
20 + 30 + 10 = 60
7 + 3 + 3 = 13
= 573
Align and Solve:
115 + 230 + 172 + 85 + 3 =
605
Align and Solve:
5896 + 4738 + 1100 =
11,734
Solve the equation AND rewrite the equation in a different way using the associative property:
120 + (216 + 114)
450
120 + (216 + 114)
Round to the nearest tens, nearest hundreds, AND use front end estimation to solve:
449 + 388 =
450 + 390 = 840 (tens)
400 + 400 = 800 (hundreds)
400 + 300 = 700 (front end)
Use partial sums to solve the equation:
322 + 364 + 412
300 + 300 + 400 = 1000
20 + 60 + 10 = 90
2 + 4 + 2 = 8
= 1,098
Align and Solve:
199 + 299 + 399 + 90 + 13
1000
Align and Solve:
4910 + 4312 + 6034 + 7100
22,356