+
Activity
AAA Math

Aaa Math: Front End Estimation

For Students 3rd - 5th Standards
Front-end estimation is explained and demonstrated with an online game at this AAA Math lesson.
+
Interactive
Shodor Education Foundation

Shodor Interactivate: Estimator Four

For Students 2nd - 8th
This applet game for two allows you to practice estimating at several different levels of accuracy. You can choose whole number addition, multiplication, percentages or any combination of the three.
+
Unit Plan
AAA Math

Aaa Math: Round to Nearest Thousand

For Students 4th - 5th Standards
This site explains how to round whole numbers to the nearest thousand. Gives practice and games to master this skill.
+
Unit Plan
AAA Math

Aaa Math: Round to Nearest Hundred Thousand

For Students 4th - 6th Standards
This site explains how to round whole numbers to the nearest hundred thousand. Gives practice and games to practice this skill which are fun and helpful on the subject.
+
Unit Plan
AAA Math

Aaa Math: Round to Nearest Ten Thousand

For Students 4th - 5th Standards
This site explains how to round whole numbers to the nearest ten thousand. Gives exercises and games to practice this skill.