Addition Properties
Find the Sum
Estimated Sums
Word Problems
100

303 + 0 = ___

303

Identity

100

45 + 62 = ___

107

100

34 + 52; tens

80

100

Isaic jogs 15 minutes more on Sunday than Saturday. He jogged 26 minutes on Saturday. 

  1. How many minutes does he jog on Sunday?

  1. How many minutes does he jog in total?

41


67

200

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

11

Associative

200

672 + 49 = ___

721

200

316 + 532; hundreds 

800

200

It takes Holly 15 minutes to mow the front lawn. It takes her 17 more minutes to mow the back lawn than the front lawn. What is the total amount of time Holly spends mowing the lawns?

47

300

7 + 5 = ___

5 + 7 = ___


Find the sum. Name the property. 

12

Commutative

300

1342 + 567 = ___

1909

300

314 + 542; hundreds

850

300

Team Empower and Team Odyssey sell lemonade to raise funds for a field trip. After selling 58 liters of lemonade in 1 week, they still have 46 liters of lemonade left. How many liters of lemonade did they have at the beginning?

104 

400

4 + 5 = 5 + 4


Find the sum. Name the property.

9


Commutative

400

324 + 532 = ___

856

400

1,245 + 531; hundreds

1,700

400

Sadie, a bear at the zoo, weighs 182 kilograms. Her cub weighs 74 kilograms.

a. Estimate the total weight of Sadie and her cub rounding to the nearest ten kilograms.

b. What is the actual weight of Sadie and her cub?

250


256

500

(4 + 6) + 9 = ___

4 + (6 + 9) = ___


Find the sum. What is the property?

19

Associative

500

3472 + 2829 = ______

6,301

500

4,783 + 4,285; tens

9070

500

Alex practices the violin for a total of 193 minutes during the first week of school. He practices for 254 minutes during the second week.

a. Estimate the total amount of time Alex practices by rounding to the nearest 100 minutes. 

b. What is the actual amount of time Alex practices?

200 + 300 = 500

193 + 254 = 447