Addition Properties
Rounding
Number sentences
Estimating sums and differences
Add three or more numbers & word problems
100

Which number is missing? 

4+___ = ___+ 4

5

100

Round to the nearest ten: 

37

40 

100

Write a number sentence for the image below: 

**** ** 

4+2=6 or 2+4=6 

100

Round to the nearest ten. Then add. 

27+13= 

30+10=40 

100

Find the sum:  

437+324= 

437+324=761

200

What is missing: 

3 + ___ = 3

0

200

Round to the nearest 10: 

23

20 

200

Write a number sentence that represents the images below: 

######     #######

5+7=12 or 7+5=12 

200

Round to the nearest ten. Then add 

276+ 123

280+120=400

200

Find the sum: 

148+333= 

481 

300

What is the property shown below? 

7+0 = 7

Identity Property 

300
Round to the nearest 10: 

474

470

300

Write a number sentence for the pictures below: 

$$$$    $$    $$$$$$

4+2+6=12

300

Round to the nearest hundred, then add.

734+890=

700+900=1600

300

Find the sum: 56+124+745

925

400

What property is shown below? 

7+2+5= 2+5+7 

Communtative Property: “switcheroo” 

400

Round to the nearest hundred: 

439

400

400

Write a number sentence for the words below: 

Perla has 8 giant pens. She gave 5 away to her friends. How many does she have left? 

8-5=3

400

Round to the nearest 100 then subtract. 

755-267= 

800-300= 500 

400

Solve. 

Michelle had 13 squishes in her backpack. For her birthday her friends gave her 23 more. How much does she have al together? 

13+23=36

500

Which property is shown below? 

4+ (6+7) = (4+6) + 7 

Associative Property 

500

Round to the nearest 100: 

3,189

3,200

500
Write a number sentence to find the following: 


Marina has 14 drawings from this last week. She made 10 more drawings this week. How many drawings does she have all together? 

14+10=24

500

Round to the nearest 100, then subtract.  

567-149

600-100=500

500

In the beginning of the day, Miss Palacios gave 2 $5 bills to Josephine. She then gave her 3 more $5 dollar bills after lUnch. How much money did she get for the day?

$25 

5+5=10 

5+5+5=15

10+15= 25