Welcome new friend Gioia! ^_^
Congratulations to the Top 3 in Kahoot! game today: Max, Susan, Annabelle ^_^
Today we learned Ch.10 Units Digits. Here are the blackboard notes in class for your review.
Homework:
- p.182 Ex.10.2.1 (h,m,q,t), 10.2.4 to10.2.6
- p.185 Ex.10.3.1 (c,g,h,i), 10.3.3
- p.188 Ex.10.4.1, 10.4.3, 10.4.4 (a)
- p.189 Ex.10.20, 10.23, 10.27
- p.190 Ex.10.37, 10.41
Extra Resource:
- https://www.justquant.com/numbertheory/units-digit-of-a-number-raised-to-power/
- https://www.youtube.com/watch?v=q2P8KxG3FHk
- https://encrypted-vtbn0.gstatic.com/video?q=tbn:ANd9GcTmIbL2kv7wDSrKeD718sxOXcbaLFUR-0NWEUG2gNqhL_xEqprJ
- https://artofproblemsolving.com/wiki/index.php/1997_AJHSME_Problems/Problem_25
Summary：
- For +,-,X of positive integers, the units digit of the result is determined solely by the units digits of all the integers involved.
- However, the division can not apply this rule.
- Problem-solving: hunt for patterns 🙂
Take care and see you next week!
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