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3rd Grade Interactive Math Skill Builders

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Rounding and Estimating - CCSS 3.NBT.A.1


Links verified on 04/05/2017

1. Basket Math.

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Practice rounding numbers. For each correct answer a basket [basketball] is made. SEE MORE
 
2. Comparison Estimator.

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Compare the two sets of objects and answer the problem being asked. Less than or Greater than exercise. SEE MORE
 
3. Estimating and Rounding Decimals.

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Try answering the 10 problems. If you get at least 8 correct on your first attempt, then you're ready to move on. If not, review the lesson and examples. SEE MORE
 
4. Estimating by Rounding.

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Addition with regrouping. Estimate the sum to the nearest thousand. SEE MORE
 
5. Estimating by Rounding.

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Subtraction with regrouping. Estimate the difference between the two Numbers. SEE MORE
 
6. Estimating Sizes of Objects.

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Guess which length or distance applies to the object. (Has sound) SEE MORE
 
7. Estimating Sum.

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Estimate the sum by front end estimation.(No hints or clues given.) SEE MORE
 
8. Estimation Valley Golf.

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Complete the course using estimation skills in as few strokes as possible.(Can be played on iPad or Tablet.) SEE MORE
 
9. Estimator.

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Practice estimation skills by determining the number of objects, length, or area. SEE MORE
 
10. Guess the Number.

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Developing skills in halving and estimation. SEE MORE
 
11. Home Run Derby Math.

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You don't have time to add, just estimate the correct answer. This is a perfect game for reinforcing number sense and estimating sums, differences, and products of four and five digit numbers. SEE MORE
 
12. Let's Go Shopping.

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Estimate by rounding to the nearest dollar as they shop.  SEE MORE
 
13. Maximum Capacity.

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Bring as many gorillas as possible to the eighth floor for the annual Gorilla's Ball at the Jungle Hotel! The only problem is, the doors to the ball close in three minutes, and there are still hundreds of anxious gorillas waiting. Check the weight capacity at the top of the elevator. It changes with each trip. Drag the gorillas into the elevator. Drag as many as you can without exceeding the weight capacity.(Can play on iPad or Tablet.)  SEE MORE
 
14. More or Less Estimator.

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Provides a quantity and you have to estimate whether the set of objects are more or less than the number given.(2 Levels) SEE MORE
 
15. Round 2-Digit Whole Number to Nearest Ten.

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Online quiz that is self checking. SEE MORE
 
16. Round 3-Digit Whole Number to Nearest Hundred.

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Online quiz that is self checking. SEE MORE
 
17. Round 3-Digit Whole Number to Nearest Ten.

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Online quiz that is self checking. SEE MORE
 
18. Round About.

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Estimate by rounding.  SEE MORE
 
19. Rounding Decimals/Whole Numbers.

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Round the decimal to the nearest whole number. Java Games: Flashcards, matching, and concentration.(from Quia)  SEE MORE
 
20. Rounding Numbers.

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Round the number to the nearest ten. SEE MORE
 
21. Rounding Off.

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Round off numbers to the nearest 10 100, or 1000 so that Hypatia can give Pythagoras a grilling! Three levels are available in this game. (Uses Shockwave player) SEE MORE
 
22. Rounding to nearest thousand.

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Round the number to the nearest thousand. SEE MORE
 
23. Rounding to the Nearest Hundred.

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Round the number to the nearest hundred. SEE MORE
 

Internet4classrooms is a collaborative effort by Susan Brooks and Bill Byles.
 

  

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