True/False
Adding Decimals
Subtracting Decimals
Adding and Subtracting Decimals
Word Problems
100
When adding and subtracting decimals, you always include the decimals.

True

100

3.14 + 5.12 = 

What is 8.26?

100

20.8 - 7.34=

What is 13.46?

100

12.46 + 3.8=

16.26

100

Herbert bought two plants.  One plant was $7.99.  The other plant was $12.99.  How much did he spend altogether?

Herbert spent $20.98.

200

When adding and subtracting decimals, you always put the longer number on top.

False

200

14.73+15.1=

What is 29.83?
200

34.63 - 27.9=

What is 6.73?

200

4.5 - 3.79=

What is 0.71?

200

Janet gave the cashier $20.  Her purchase total came to $14.75.  How much change will she receive?

What is $5.25?

300

When adding and subtracting decimals, you ignore the decimal points.

False

300

3 + 4.55=

What is 7.55?

300

150- 0.48=

What is 149.52?

300

79.38 - 9.19=

What is 70.19?

300

Jackson and his family went to the concession stand.  He had $5 in his pocket.  He offered to pay.  He ordered a soda for $1.25.  His brother ordered an ice cream for $1.50.  His mom ordered a bottled water for $1.00.  How much money will Jackson have leftover?

Jackson will have $1.25 remaining.
400

When adding and subtracting decimals you put the bigger number on top.

True

400

17.82 + 3.66=

What is 21.48?

400

6 - 2.33=

What is 3.67?

400

12.13 + .9=

What is 13.03?

400

Sarah went and bought pet food.  She spent $17.95 on dog food, $13.95 on cat food, and $5.75 on hamster food.  How much did she spend altogether?

Sarah spent $37.65.

500

When adding and subtracting decimals, you count how many numbers are behind the decimals in the problem and put that in your answer.

False! 

500

11.7 + 2.81=

What is 14.51?

500

1124.09 - 567.87=

What is 556.22?

500

10.21 - 5.6=

What is 4.61?

500

Billy Bob Joe went to the county fair with his wife and kids.  They rode rides, played games, and then decided to have some fair food!  Billy Bob Joe wanted a pretzel for $4.75.  His wife wanted a Sno-cone for $3.50.  His son wanted an over-sized lollipop for $2.50. His daughter wanted cotton candy for $4.00.  He gave the cashier a $20.  How much change did he receive?

Billy Bob Joe will receive $5.25 change.