Primary Resources
Primary Resources: Rounding Numbers and Estimating
A large selection of teacher resources to help teach and review the concepts of rounding and estimating. There are many worksheets and a few PowerPoint presentations.
Quia
Quia: Hangman Rounding
Don't get "hung up" when you play this old game with a new twist. Simply, round each numbers to the nearest thousand then, find the sum or difference. Knowledge of place value units, where to put the comma, and good computation skills...
Quia
Quia: Decimal and Whole Number Jeopardy
You can use this web site to compare and round numbers and to also practice rounding whole numbers and decimals. You can just play by yourself or with another player! See how many points you can get.
AAA Math
Aaa Math: Estimating a Sum by Rounding
Use rounding to estimate the answer to an addition problem in this online game. As you play the game, running totals of correct and incorrect answers and your score are displayed.
NumberNut
Number Nut: Rounding Numbers to the Nearest Tenth
Practice your rounding skills in this online quiz. There are ten questions, and you select the correct answer by rounding to the nearest tenth.
History is Fun
Jan Brett: Seashell Rounding Activity
Sharpen your rounding skills with this interactive game based on Jan Brett's, Comet's Nine Lives. Round correctly to the nearest ten and earn a sand dollar for each correct response. Immediate feedback provided.
NumberNut
Number Nut: Rounding Numbers to the Nearest Hundred
Round each number to the nearest hundred. Select the correct answer of three choices. There are ten random questions.