Rounding to the nearest ten

Saxon just introduced rounding to the nearest tens place. I began by teaching my kids a song to the tune of "if you're happy and you know it." 

If you’re rounding to the tens place, check the ones.

If you’re rounding to the tens place, check the ones.

If the ones are zero through four, round it down to the tens before.

If you’re rounding to the tens place, check the ones.

If you’re rounding to the tens place, check the ones.

If you’re rounding to the tens place, check the ones.

If the ones are five through nine, round it up, and you’ll be fine.

If you’re rounding to the tens place, check the ones.

If you click the above download it is a center game I prepared for my students. First lay out the 10-100 cards. The students will solve the addition and subtraction problems and decide what number it belongs under. I plan on laminating so the kids will solve using a dry erase marker. If you want more of an accountability piece then I would suggest having them record their answers on looseleaf paper. 

To differentiate for students who haven't mastered addition and subtraction but you want them to practice rounding, you can use flashcards such as these.

I'm off to nap then catch up on 3 weeks worth of laundry. I love Spring break! My next post will be about Mother's Day projects... Can't believe it's almost May, but still chilly here in NY! :/