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Money · Ages 10+ · Set C
The rule of 72
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C
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Goal: 15 min
Score/ 12
Remember: Seventy-two divided by the yearly rate is a quick guess at the years to double.

Questions

1
Seventy-two divided by the rate is about the years to double. Which garden doubles in about twelve years?
🐌a garden paying two percent🐕a garden paying six percent🚀a garden paying twenty-four percent
2
Seventy-two divided by the rate is about the years to double. Which garden doubles in about three years?
🦌a garden paying nine percent🐎a garden paying eight percent🚀a garden paying twenty-four percent
3
🦅Seventy-two divided by the rate is about the years to double. Does a garden paying eighteen percent double in about nine years?
YesNo
4
Which one is true about the rule of seventy-two?
📏exact every single time🧮counting every year by hand💭a tool for thinking
5
Seventy-two divided by the rate is about the years to double. Which garden doubles in about eight years?
⚡a garden paying thirty-six percent🐎a garden paying eight percent🦌a garden paying nine percent
6
Seventy-two divided by the rate is about the years to double. Which garden doubles in about eighteen years?
🦎a garden paying four percent🐢a garden paying three percent🦌a garden paying nine percent
7
Which one is not true about the rule of seventy-two?
↩️working backwards from the years🔭just as good at any rate💭a tool for thinking
8
Which one is true about the rule of seventy-two?
🤞a promise about a real garden≈an approximation🧮counting every year by hand
9
🐌Seventy-two divided by the rate is about the years to double. Does a garden paying two percent double in about nine years?
YesNo
10
Which one is true about the rule of seventy-two?
🔭just as good at any rate➗seventy-two splitting evenly many ways🤞a promise about a real garden
11
Which one is not true about the rule of seventy-two?
🤞a promise about a real garden↩️working backwards from the years🎯a close guess at doubling time
12
Which one is not true about the rule of seventy-two?
🎯a close guess at doubling time🧮counting every year by hand💭a tool for thinking
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