Number Forms
Adding and Subtracting Decimals
Comparing
Word Problems
Properties of Addition
200

Write 3,412.182 in word form

three thousand, four hundred twelve and one hundred eighty-two thousandths

200

2.3 - 1.6 =

0.7

200

Greater than, Less than, or Equal to

0.14 _____ 0.140

Equal to

=

200

Elias is looking in his two piggy banks.  In one piggy bank he finds $0.53.  In the other piggy bank, he finds $0.69.  How much money does he find in all?

$1.22

200

1 + 2 = 2 + 1

What property of addition does this demonstrate?

Commutative Property of Addition

400

Convert forty-one thousand, three hundred twenty-five and six hundred eight thousandths to standard form.

41,325.608

400

15.81 + 14.19 =

30.00

400

Greater than, Less than, or Equal to

0.18 _____ 0.81

Less than

<

400

Jaabir is admiring his string collection.  His most favorite piece of string is 3.81 m long.  His least favorite string is 4.9 m long.  How long are the two pieces of string together?

8.71 m

400

(40 x 5) + (60 x 5) = 100 x 5

What property of addition does this demonstrate?

Distributive Property of Addition

600

Write 15,971.28 in expanded form.

10,000 + 5,000 + 900 + 70 + 1 + .2 + .08

600

24.003 + 501.6 =

525.603

600

Greater than, Less than, or Equal to

0.351 _____ 0.215

Greater than

>

600

Airon has to walk to school.  He walks 3.7 miles to school each morning.  After school, he has to walk to meet his brother in Middle School.  He walks 6.21 miles to the Middle School.  How much farther in the afternoon does he have to walk than in the morning?

2.51 miles

600

3 + (5 + 9) = (3 + 5) + 9

What property of addition does this demonstrate?

Associative Property of Addition

800

Convert 782,309.16 to word form.

Seven hundred eighty-two thousand, three hundred nine and sixteen hundredths.

800

28,918.111 - 12,915.382 =

16,002.729

800

Greater than, Less than, or Equal To

4.328 _____ 4.238

Greater Than

>

800

Rohini and Siddharth decide to have a contest on who can give the most expensive present to Mr. Scarson.  Siddharth gives a present worth $59.13.  Rohini gifts Mr. Scarson a present worth $131.  How much more expensive is Rohini's present than Siddharth?

$71.87

800

Shermaine is adding 82 + 38 + 18.  She rearranges the addends to add 82 and 18 first, and then adds 38 to the sum.  What property of addition did she use to make it easier to add?  

Cumulative Property of Addition 

1000

Convert 60,000 + 3,000 + 200 + 70 + 9 + .4 + .05 + .001 to expanded form (powers of ten).

(6 x 10,000) + (3 x 1,000) + (2 x 100) + (7 x 10) + (9 x 1) + (4 x 1/10) + (5 x 1/100) + (1 x 1/1000)

1000

56,283,234.3941 + 32,781,009.29 =

89,064,243.6841

1000

Greater than, Less than, or Equal To

591.1956 _____ 591.1965

Less than

<

1000

Mr. Scarson wins the lottery and he receives $308,258.51.  He spends $105,761.13 in the first month after he won.  How much money does Mr. Scarson have left after the first month?

$202,497.38

1000

Draw a model that demonstrates the Cumulative Property of Addition.  Mr. Scarson will evaluate your drawings.

Mr. Scarson will look at your drawings and evaluate them.

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