Time: 15 to 20 minutes · You'll need: a calculator or paper · Builds on: Lesson 4
Warm-up
Check yourself
An exchange halts withdrawals and files for bankruptcy. What do its customers hold?
Check yourself
What turns a lost phone into a lost wallet?
Exercise 4 · 14 min
Time: 15 to 20 minutes · You'll need: a calculator or paper · Builds on: Lesson 4
Check yourself
An exchange halts withdrawals and files for bankruptcy. What do its customers hold?
Check yourself
What turns a lost phone into a lost wallet?
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