Free Teacher, Parent & Student Education Resources

## Rounding

Online Activities
Rounding Seashells - Look at the number on each shell. Click on the nearest ten. Collect a sand dollar each time you choose the correct answer. Keep track of how many sand dollars you get.
Rounding Sharks - Round numbers to the nearest hundred. First click the game to start. Then click the shark with the answer, to have it blast into pieces. If you act slow, the sharks will catch the goldfish and you loose. Avoid clicking the wrong shark because it will send it to the goldfish. Blast 20 sharks to be a win.
Connect Four - You choose addition or multiplication, choose time, level and pick "close" for estimation. Start game and click ready then round numbers in your head and add or multiply. If you answer correctly click the column you want to put your chip into. Connect four and win!
Estimator Quiz - You choose addition or multiplication, choose time, level and pick "close" for estimation. Start game and click ready then round numbers in your head and add or multiply.

## Rounding

Online Activities
Rounding Flash Cards - You pick numbers between one hundred and ten million to round and computer will ask you the to round to nearest ten or hundred. Keeps a percentage score for you.
Rounding Practice - Houghton Mifflin Math book has a simple multiple choice rounding practice. (Tens & hundreds).
Basic Rounding Practice - You choose what you want to round to nearest ten, hundred or thousand as well as the minimum and maximum number.
Estimating Machine - The machine will show you a bunch of numbers. You need to type in an estimate of what those numbers would add up to. You have 60 seconds to give your estimate! The secret to solving this puzzle is to round the numbers before adding them together.
Round Off - Practice Rounding to the nearest unit, ten and hundred. Deals with decimals to the tenth.
Bingo Rounding - Round numbers up to thousands to the nearest ten and the nearest hundred.