Make a Thousand
In this addition learning exercise, students use only whole hundreds and find out how many different ways they can make one thousand by adding 2 numbers together. There are 10 blank addition operations for students to fill in.
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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
Study Jams! Estimate Sums & Differences of Whole Numbers
Estimating is an essential skill used in everyday life. This presentation explains how to apply prior knowledge about rounding numbers to estimating sums and differences. Example problems and assessment include large numbers, making this...
4th - 6th Math CCSS: Adaptable