Fish in a Tree Chapters 27 28 29 and 30 pp 141163

>> DOWNLOAD LINK 🎞️ #1 <<

>> DOWNLOAD LINK 🎞️ #2 <<

>> COPY / PASTE LINK PLEASE 🎵 MP3 <<

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=SV1dC1KAl_U

This mental multiplication trick uses the idea of a third number - a base number - to help us multiply two numbers in your head. This series of videos first looks at multiplying numbers near 10 using base 10. The second video looks at multiplying using base 20 and 30. The third video looks at how to apply this mental multiplication trick to numbers near 50. The forth video the investigates ho to easilt mentally multiply numbers near to 100. Continue your mental math multiplication abilties here! • To donate to the tecmath channel:https://paypal.me/tecmath • To support tecmath on Patreon:   / tecmath   • To buy tecmath mechandise: https://teespring.com/stores/tecmath-...

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