Mental Math Strategies - Use Known Equivalent Sums

In this video, Mr. Almeida explains how to use mental strategies to add within 20 using known sums to solve unknown sums. This is one of the strategies suggested in the Common Core State Standards for Mathematics, 1.OA.6 and 2.OA.2.

With practice, this strategy can help students gain fluency when adding within 20. Eventually students will memorize these facts, which is expected by the end of grade 2.

Category:

Education

Tags:

• Joseph Almeida
• mathwithmralmeida
• common core state standards
• common core
• common core math
• mental math strategies
• mental math
• use known sums
• use known facts
• Alma del Mar Charter School
• Alma del Mar
• addition
• New Bedford
• Massachusetts
• 1.OA.6
• 2.OA.2

[MathwithMrAlmeida]

Good point. These videos are meant to be watched by parents with their children. I also post them on my private classroom site where the students have access to them. Thanks for stopping by!

[iLoveGamesUC3]

Nice tutorial,but do you think Grade 2s would be watching YouTube .

PS:I do not suck in math.I am awesome in it actually(Asian man)