Addition Properties
Place Value
Decimals
Estimating Sums and Differences
Rounding
100

What are the addition properties? 

identity, commutative, and associative. 

100

What is the place value of the underlined number? 

7,830,987

Hundred thousands 

100

What is the value of the underlined number? 


0.06

hundredths 

100

Estimate by using front end estimation. 


  2,587

  4,676

+7,829

20,000

100

Round the underlined number. 


163, 128

160,000

200
What property is this? 


9 + 5 = 5 + 9 

commutative 

200

What is the place value of the underlined number? 

365,123,000

ones 

200

Write the value of the underlined number. 

0.918

tenths

200

Estimate by using front end estimation. 

  5,932

  8,765

+3,989

18,000

200

Round the underlined number. 


84,193,103

84,193,000

300

What property is this? 


4 + 0 = 4

identity 

300

Write the number in standard form. 


Five hundred seventy-three 

573

300

Write the decimal in standard form. 


seven thousandths

0.007

300

Estimate by using front end estimation. 

  6,876

- 3,257

2,000

300

Round to the greatest place. 

53,678

50,000

400

What property is this? 


( 3 + 4 ) + 8 = 3 + ( 4 + 8 )

Associative

400

Write the number in standard form. 


Three thousand, four hundred twenty-five 

3,425

400

Write the decimal in standard form. 


nine hundred four thousandths

0.904

400

Estimate by rounding. 

  890

  763

+723

2,370

400

Round to the greatest place. 

5,748,111

6,000,000

500

Fill in the blanks. 

6 + ______ = 6

5 + _____ = 8 + 5 

( 2 + 6 ) + 9 = 2 + ( _____ + 9 ) 

8

6


500

Write the word name for this number. 


590,235

five hundred ninety thousand, two hundred thirty-five

500

Write the word name for this decimal. 


2.461

two and four hundred sixty one thousandths

500

Estimate by rounding. 

  9,985

  7,645

+4,987

22,630

500

Round each to the nearest ten cents, dollar and ten dollar.

$146.72

$146.70

$147.00

$150.00