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Addition: Missing Numbers 2
In this addition practice instructional activity, students use the counting blocks to help them solve 12 math problems. It requires that they find the missing number to complete each of the addition sentences.
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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
Write and Test Equations with Two Equal Addends to Prove that the Sum will Always be Equal
Will the sum of two even numbers always be even? Discover the answer with the fourth video in this five-part series. Multiple examples are presented, using a combination of number sentences and visual models to help young mathematicians...
5 mins 1st - 3rd Math CCSS: Designed