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Vocabulary
Adding Decimals
Subtracting Decimals
Word Problems
Decimals Patterns
100
The answer to an addition sentence. 

sum

100

True or False: 1.734 + 7.945 = 12.515 

False 

1.734 + 7.945 = 9.679 

100

True or False: 14 - 0.921 = 10.336

False 

14 - 0.921 = 13.079 

100
Prakrit bought a pack of paper for $5.69 and printer toner for $9.76. He paid with a $20 bill. What was his change?

1.) $5.69 + $9.76 = $15.45

2.) $20.00 - $15.45 = $4.55 

Prakrit received $4.55 in change.

100
What is the rule for this pattern ( only addition or subtraction) 

0.5 + 1.8 + 3.1 + 4.4

Rule = + 1.3 

200
The answer to a subtraction sentence. 

difference

200

1.36 + 0.684 = ?

1.36 + 0.684 = 2.044

200

The number being subtracted in a subtraction sentence. The second number. 

subtrahend

200

Jenna finished a biking race in 21.319 minutes. Jake took 19.59 minutes to finish. How much longer did Jenna take than Jake? 

21.319 - 19.59 = 1.729 

Jenna took 1.729 minutes longer than Jake.

200

What is the rule for this pattern? (only addition and subtraction) 

19.5, 18.8, 18.1, 17.4 

Rule = - 0.7

300

Opposite operations, or operations that undo each other. 

inverse operations

300

Estimate & Solve 

23.54 + 12.691 = ?

1.) 24 + 13 = 37 

2.) 23.54 + 12.691 = 36.231 

300

8.621 - 2.35 = ? 

8.621 - 2.35 = 6.271 

300

Rufus measured the growth of a plant for his science project. At the end of the first week, the plant had grown to 9.54 centimeters in height. During the second week, the plant grew 2.68 centimeters. How tall was Rufus's plant at the end of the second week?

9.54 + 2.68 = 12.22 

Rufus's plant grew to 12.22 centimeters at the end of the second week. 

300

Find the next 3 terms; the rule is subtract 1.45 

10.64 , _____, ______, ______

10.64 , 9.19 , 7.74 , 6.29

400
The numbers that are added together in an addition equation. 

addends. 

400

Estimate & Solve: 

4.588 + 1.6 = ?

1.) 5 + 2 = 7

2.) 4.588 + 1.6 = 6.188

400

Estimate & Solve

75.2 - 12.369 = ? 

75.2 - 12.369 = 62.831

400

Kasen is building a block tower. Right now, the tower stands 0.89 meter tall. How much higher does the tower need to be to reach a height of 1.74? 

1.74 - 0.89 = 0.85

Kasen needs 0.85 meter to grow the tower.

400
Find the next three terms, the rule is to add 2.15


0.87, ______, _______, ______

0.87, 3.02 , 5.17 , 7.32

500
A number that will have a value subtracted from it. The first number in a subtraction sentence. 

minuend

500

2.36587 + 1.2654 = ?

2.36587 + 1.2654 = 3.63127

500

Estimate & Solve 

9.552 - 8.223 = ? 

9.552 - 8.223 = 1.329

500

Baltimore received 4.65 centimeters of rain in the first two weeks of August. During the rest of the month, it rained 3.68 centimeters more than in the first two weeks. What is the total rainfall in centimeters for August?

1.) 4.65+3.68 = 8.33

2.) 4.65 + 8.33 = 12.98 


It rained 12.98 centimeters in August.

500

Marta put $4.87 in her coin bank. Each day she added 1 quarter, 1 nickel, and 3 pennies. How much money was in her coin bank after three  days? 

1.) 1 quarter + 1 nickel + 3 pennies = 0.25 + .05 + 0.03 = $0.33

2.) $4.87, $5.20, $5.53, $5.86 


Marta will have $5.86 after saving for three days.