Addition Property
Partial Sums
Rounding to Add
Finding Unknown Numbers
Word Problems
100

What property is this?


417 + 0 = 417

Addition Property of Zero

100

What are the partial sums/expanded form of 356?

300 + 50 + 6

100
Round 487 to the nearest hundred.

500

100

x + 127 = 251

x = 124

100

Jack has 28 lolipops, and Jill has 12 fewer. Write the equation to represent the problem.

28 - 12 = x

200

What property is this?


56 + ( 165 + 12) = (56 + 165) + 12

Associative Property

200

What would be the partial sum value of the 4 in 246?

40

200

Round the following addends and write the sum.


762 + 112 = 

800 + 100 = 900

200

654 + x = 765

x = 111

200

Alexa wrote an essay with 342 words; Kenny wrote 126 more words than her. How many words did Kenny write in his essay?

468 words

300

What property is this?


123 + 154 = 154 + 123

Commutative Property

300

When using partial sums you break apart the _________.

Addends

300

Round the following addends and write the sum.

219 + 187 

200 + 200 = 400

300
If x = 142, what is the sum of the equation?


x + 254 = 

396

300

Kayla and Sandy were building a lego house and needed 352 pieces to complete the house. They were missing 47 pieces; how many pieces(x) did they have?

x = 305 pieces

400

Solve the problem


342 + ___ = 342

0

400

What number is represented by the following partial sum?

500 + 80 + 1

581

400

Round the following addends and write the sum.


529 + 397

500 + 400 = 900

400

If x = 25, solve the equation.

x + x + 30 = 

80

400

Ivey has 162 more tiktok followers than Cadin. Cadin has 415 tiktok followers; how many followers does Ivey have?

577 tiktok followers

500

What number is missing in the associative property equation?


123 + (165 + 176) = ( ___ + 165) + 176

123

500

Use partial sums to solve 498 + 171

400 + 90 + 8

100 + 70 + 1

= 669

500

Round the following addends and write the sum.


119 + 727

100 + 700 = 800

500

46 - x = 25

21

500

Wallace Gregg has 282 students, and Delmae has 478 more students than Wallace Gregg. How many students does Delmae have?

760 students

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