Decimals to Fractions
Place Value
Comparisons
Is it Reasonable?
Add and Subtract
100

Write 5 tenths as a decimal. 

0.5

100

Write 134.603 in EXPANDED form. 

100+30+4+0.6+0.003

100

165 O 4.372

165 > 4.372

100

A hot dog costs $4.99 and a drink costs $5.99. Jimothy estimates that the total cost for a hotdog and a drink will be about $15. 

$4.99 rounds to $5

$5.99 rounds to $6

5 + 6 = 11: Not reasonable!

100

4.23 + 10.4

14.63

200

Write 56 hundredths as a decimal. 

0.56

200

Write sixteen thousand and four hundred twelve thousandths in STANDARD form. 

16,000.412

200

0.03 O 0.030

0.03 = 0.030

200

Joe has $30 and wants to go to the fair. The ticket for the fair costs $15.74. Will he have enough money left to buy a corn dog for $6.34 and ice cream for $5.88?

Use ESTIMATION to decide. 

30 - 16 = 14

6 + 6 = 12

Yes, Joe should have enough money for the corn dog and the ice cream. 

200

4.32 - 2.74 

1.58

300

206/1000

0.206

300

In which number is the value of the digit 6 one tenth of the value of the digit 6 in 86.47?

a. 34.36

b. 36.47

c. 48.61

d. 60.14

c. 48.61

When we move to the right it is one tenth. 

300

388 O 9.407

388 > 9.407

300

Gigi saved $100. If she buys some fish treats for $29.99 and a new cat tree for $59.99, she thinks she will have about $20 left. Is Gigi's estimate reasonable?

29.99 rounds to 30

59.99 rounds to 60

30 + 60 = 90

100 - 90 = 10, so NO her estimate is not reasonable, she will only have about $10 left over. 

300

853 - 6.72

846.28

400

52/1000

0.052

400

In which number is the value of digit 3 one tenth of the value of the digit 3 in 4.835?

a. 4.903

b. 3.602

c. 5.034

d. 9.301

a. 4.903

400

3.452 O 0.843

3.452 > 0.843

400

Estimate the difference:

$85.42 - $9.77

85 - 10 = 75

400

794.2 + 35.29

829.49

500

2/100

0.02

500

Write a number in which the digit 5 has one tenth the value of the digit in 1,504,389

Any number with a 5 in the TEN THOUSANDS place value. 

ex) 1,054,389

500

USE THE NUMBER LINE TO EXPLAIN: 0.08 O 0.8

0.08 < 0.8

Must show correctly on the number line for points

500

Estimate the sum:

307,999 + 0.78 + 4,395

308,000 + 1 + 4,000 = 312,001

500

10 - 1.234

8.766

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