Add and subtract decimals through hundredths. (SPI 0406.2.9)

Links verified on 11/7/2011

1. Checking Subtraction - explore the inverse relationship of addition and subtraction
2. Circus Fun - add up to three digits with regrouping
3. Count the Money - You're given a target amount and the number of coins you already have. You must determine how many more coins of a certain type are needed to reach the target.
4. Decimal Darts - [game for one or two players] an invisible number line is superimposed on a dart board, students calculate the location of a balloon and then throw a dart
5. Decimal Squares Blackjack - cards containing decimals are displayed, students decide whether to ask for more cards until they get as close to 2.0 without going over
6. Fun on the Farm - Multiply the numbers and add the totals to see how much the farmer should charge for his products.
7. Grand Slam Math - Level I - 15 addition and subtraction single and multi step word problems that start out easy and get a little harder as you go
8. Grand Slam Math - Level II - 15 multiplication and division single and multi step word problems that start out easy and get a little harder as you go
9. Hotel Decimalfornia -Take as many Screech Owl hotel guests to their rooms as possible before the morning comes. But these pesky Screech Owls make nothing easy. Rather than just telling the elevator escort what room they are in, they make him figure out an addition or subtraction decimal problem! 2-6-12
10. It's A Fact - practice basic subtraction facts
11. Jet ski Addition - a multi player addition racing game
12. Lemonade Stand - How much money is needed to purchase cups of lemonade?
13. Let's Do Lunch - use a menu to order lunches that meet various criteria
14. Let's Go Shopping - estimate by rounding to the nearest dollar as they shop
15. Lunch Lady - The Lunch Lady (you) must total the three items on ten lunch trays (one at a time) in three minutes. [a money counting game from Mr. Nussbaum]
16. Math Hoops - All word problems use whole numbers but the problems range from single step addition to multi step equations. There are also problems that require students to interpret remainders. Students who answer 5 questions correctly get a chance to play some basketball.
17. Math Playground - Hundreds of self-checking word problems for students in grades 1 to 6. There are currently 675 word problems available. They will be adding more content throughout the school year
18. Math Stories Activity - select Combining, Separating, Comparing, or Equal Groups and then work through activities by writing math sentences
19. Math Story Problems! - Kid created math story problems ("Kitten" pages are the easiest.) There are lots of links to pages of problems... scroll way down to see them all
20. My Backpack - add columns and find missing addends using data generated from a chart
21. Railroad Repair - students must repair gaps in the railroad tracks by adding decimal lengths of track - each section gets harder
22. Rope Tug - [game for one or two players] three levels available, opponents are pulled toward the pit if you have a larger decimal, the amount of pull is related to the difference between the two decimals
23. Rounding - to the nearest ten or dollar, a quiz from Saxon math
24. Shopping at Troy's Toys - percent shopping
25. Show Me The Money - add using columns.
26. Speed Grid: Addition - (level 3) Students answer the question set by clicking on two numbers that complete the sentence. You set the number of questions (2 to 99) and the time limit (1 to 10)
27. Speed Grid: Subtraction - (level 3) Students answer the question set by clicking on two numbers that complete the sentence. You set the number of questions (2 to 99) and the time limit (1 to 10)
28. Spy Guys Interactive - Decimals - Lesson 1
29. Spy Guys Interactive - Solving Problems with Decimals - Lesson 5
30. Thinking Blocks - (an engaging, interactive math tool to help students learn how to solve multi step word problems; addition & subtraction, multiplication & division, and ratio & proportion) Thinking Blocks encourages students to look beyond the surface to discover the concepts and relationships that are at the core of every math problem.
31. Tug of War Addition - a multi player tug of war game for addition
32. Word Problems for Grades 1 - 5 - This KidZone math page has four fourth grade problems. Each time you open a new page the site generates new values for the problem.
33. Word Problems with Katie - Level I - 10 addition and subtraction single and multi step word problems that start out easy and get a little harder as you go
34. Word Problems with Katie - Level II - 10 multiplication and division single and multi step word problems that start out easy and get a little harder as you go

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