I don't think i ever knew this... i always used the (ex. 9x3= the number below the # being multipled by 9 .. like 2 then the second number is whatever is added to get 9 ... answer 7)... hope that makes sense lol :)

How to Multiply by 9 Using your Fingers

I don& think i ever knew this. the number below the # being multipled by 9 . like 2 then the second number is whatever is added to get 9 . answer hope that makes sense lol :)

Lock & Key Addition Puzzles for Kids - fun hands-on STEM math idea!  via @karyntripp

Lock & Key Addition Puzzles for Kids

Lock & Key Addition Puzzles for Kids Check out all the 28 Days of STEAM Projects for Kids for fun science, technology, engineering, art, and math activities!

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13512073_1369508833064273_6332318605282721045_n.jpg (JPEG kép, 540 × 960 képpont) - Átméretezett (78%)

13512073_1369508833064273_6332318605282721045_n.jpg (JPEG kép, 540 × 960 képpont) - Átméretezett (78%)

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