Up or Down? Rounding Numbers
Students identify and demonstrate usage of the rules for rounding numbers to the nearest 100. In this rounding numbers lesson, students demonstrate number sense by comparing, ordering, and expanding whole numbers.
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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
Numbers to 1000 on a Line or Grid
A series of engaging activities gives second-graders practice with three-digit numbers up to 1000. They examine three hundreds charts, one with numbers 101-200, another with 901-1000, and a third counting by 10 to 1000. Worksheets give...
1st - 3rd Math CCSS: Adaptable
Rounding Whole Numbers 2
This is the second in a series of 3 Khan Academy videos on rounding whole numbers. Students watch Sal Khan round the number 423,275 to the nearest thousand by looking to the number in the hundreds place. If it is 5 or higher, you round...
2 mins 3rd - 5th Math CCSS: Adaptable
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