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## Estimation - CCSS 4.OA.3

 1. Alien Angles. Click Image to Enlarge Friendly aliens have lost their way and you are in charge of the rescue mission. Your job is to set the angle on the rescue launcher. Can you estimate the angles within 5 degrees? SEE MORE 2. Astro Blaster. Click Image to Enlarge Practice rounding to the nearest ten, hundred or even thousand by destroying astroids, aliens, and ufos in space. Once rounding numbers is learned, practice estimating two-digit numbers in addition and subtraction problems. Great for students still having difficulty grasping the concept. SEE MORE 3. Calculate Genius. Click Image to Enlarge Real world estimation. It's always fun to try to guess how many beans in a jar, how tall an object is or how much volume a container holds and see how close you come to the actual answer. That is what you will do in this game after getting a quick glimpse of what needs to be estimated. SEE MORE 4. Comparison Estimator. Click Image to Enlarge This activity allows the user to understand the estimation process by comparing two objects. Students can choose to compare the length of two lines, the area of two shapes, or the number of objects on each side. SEE MORE 5. Estimate Differences (Word Problems). Click Image to Enlarge Estimate differences in word problems. (4 Levels) SEE MORE 6. Estimate Differences. Click Image to Enlarge Estimate the difference by rounding each number to the nearest 10 and then subtracting. (4 Levels) SEE MORE 7. Estimate Products Up to 100,000. Click Image to Enlarge Use estimation to solve multiplication problems. (4 Levels) SEE MORE 8. Estimate Quotients Up to 10,000. Click Image to Enlarge When estimating use greater than or less than signs to make the sentence true. (4 Levels) SEE MORE 9. Estimate Sums (Up to 100,000). Click Image to Enlarge Practice estimating to find the sums. (4 Levels) SEE MORE 10. Estimate Sums (Word Problems). Click Image to Enlarge Choose the best estimated answer to each word problem. (4 Levels) SEE MORE 11. Estimating Sums to 1000. Click Image to Enlarge This activity requires students to estimate sums to 1000. Immediate feedback is given.  SEE MORE 12. Estimator Four. Click Image to Enlarge Try to connect four pieces in a row first. However, you must answer questions using estimation to. SEE MORE 13. Estimator. Click Image to Enlarge This activity allows the user to develop their estimation skills in 1 and 2 dimensions as well as estimating the number of individual objects. SEE MORE 14. How Many Marbles? Click Image to Enlarge Look at the marbles in the jar. Move the jar around. You can see the marbles from different sides. How many are there? Take a guess! How close can you get? SEE MORE 15. MathPup Angles Bubble Shoot. Click Image to Enlarge The location of bubbles are given in degrees. Use the slider to estimate the degrees as best as you can and then hit the shoot button to see how good your estimate is. SEE MORE 16. More or Less Estimator. Click Image to Enlarge Similar to Estimator activity but states a quantity and asks the user to estimate whether the set of objects is more or less than the number given. This activity allows the user to learn about the estimation process. Students can choose to estimate the length of a line, the area of a shape, or the number of objects in the box.  SEE MORE 17. Rounding and Estimating. Click Image to Enlarge Numerous practice lessons and exercises for rounding and estimating numbers and decimals. SEE MORE 18. Sir Roundalot. Click Image to Enlarge Destroy the box that shows the correct number in one of our popular rounding games. SEE MORE 19. Soccer Math. Click Image to Enlarge Practice estimating sums, differences, products and quotients. There are different levels of difficulty in each exercise making the game appropriate for a variety of students. The game offers a fun penalty shot feature after players get five correct in-a-row. SEE MORE 20. Word Problems Using Multiplication (Products) Estimation. Click Image to Enlarge This activity requires students to solve word problems with product estimation. SEE MORE

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