Chapter 2 Review

Addition Properties

100

Find the sum and identify the addition property. 

(2+5) +8= 

2+ (5+8) = 

15, Associative Property 

200

Find the sum and identify the addition property. 

2+8 = 

8+2= 

10, Commutative Property 

300

Find the sum and identify the addition property. 

100 +0 = 

100, Identity 

400

Find the sum and identify the addition property. 

6+5= 

5+6 = 

11, Commutative 

500

Find the sum and identify the addition property.

(5+7) +3 = 

5 + (7+3) = 

15, Associative 

Addition Patterns

100

What number is 1 more than 972? 

973

200

What number is 10 more than 310?

320

300

What number is 1,000 more than 8,993?

9,993

400

What number is 100 more than 173?

273

500

Identify and complete the number pattern. 

6,282; 7,282; _______; 9,282

8,282, add 1,000

Estimate Sums

100

Estimate. Round each addend to the indicated place value. 

34+23; tens 

50

200

Estimate. Round each addend to the indicated place value. 

636+27; Tens 

670

300

Estimate. Round each addend to the indicated place value. 

687+231; Hundreds 

900

400

Estimate. Round each addend to the indicated place value. 

1,624+334; Hundreds 

1,900

500

Estimate. Round each addend to the indicated place value. 

4,412+1,204; Hundreds 

5.600

Add Three-Digit Numbers

100

759+19

778

200

445+26

471

300

345+93

438

400

228+149

377

500

231+596

827

Add Four-Digit Numbers

100

6,499+543

7,042

200

1,998+300

2,298

300

2,503+2,899

5,402

400

8,285+ 1,456

9,741

500

2,390+3,490

5,880