Show:
Commutative Property
Associative Property
Estimation
Vocabulary
Name That Property!
100
What is the missing number? ___ + 3 = 3 + 482
What is 482?
100
What is the missing number? (33+11) +99= (99+11) + ___?
What is 33?
100
Round to the nearest ten. 25 + 31 =
30 + 30 = 60
100
When adding 3 or more numbers, order doesn't matter.
Associative Property of Addition
100
What property reflects the problem? 921 + 1 = 921 +1 property?
Communtative
200
What is the missing number? 398 + 258 = 258 + _____
What is 398?
200
What is the missing number? (___+124)+88= (88+12) + 124
What is 12?
200
Round to the nearest 100. 98 + 210
100 + 200 = 300
200
When adding 2 numbers, order doesn't matter
Commutative Property of Addition
200
What is the correct addition property for the following problem? 45 + 382 = 382 + 45.
What is the commutative property?
300
What is the missing number? _____ + 1,352 = 1,352 + 54
What is 54?
300
Create a problem that shows the associative property.
Look at student answers.
300
Round to the nearest 100. 376 + 198
400 + 200 = 600
300

A number close to the exact number

Estimate

300
What is the correct property? (17 + 55) + 15= 17+(55+15)
What is the associative property?
400
Create a problem that shows the commutative property.
Check student answers.
400
.Create a problem showing the associative property. Use the numbers 7, 15, 3.
Look at student answers
400
Round to the nearest 1,000. 2589 + 3698
3000 + 4000 = 7000
400

symbols which show grouping

parentheses

400
What property can help solve the following problem? 14 + (66 + 149)= (14 + 66) + 149
What is the associative property?
500
What are the number sentences that can be created using the numbers 150, 225, and 75?
What is 150 + 75 = 225 and 75 + 150 = 225?
500
Create a problem using the associative property. Use the numbers 50, 72, 50.
Look at student answers.
500
Round to the nearest 100. 3576 + 4521
3600 + 4500 = 8100
500

to rename a number using place value

regroup

500
What property helps one to solve the following problem? 32 + 68 = ____, 100 = 68 + 32
What is the commutative property?