Here is an estimating numbers activity in which learners observe the ones place numbers to round two-digit numbers to the nearest ten. They solve 20 problems.
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Formative Assessment Task: Number and Operations in Base Ten
Engage your class in developing their understanding of place value with this simple hands-on activity. Presented with a multi-digit number, young mathematicians use the provided digit cards to create numbers in response to a series of...
3rd - 5th Math CCSS: Designed
Find Benchmark Numbers Using a Number Line
The second of eight videos on rounding whole numbers to the nearest 10 or 100 describes how to use a number line to create benchmark numbers. A review of place value and counting by 10s starts off the lesson, followed by a discussion on...
5 mins 2nd - 4th Math CCSS: Designed