A calculator only has a +10 button. Starting from 0, how many clicks does it take to reach 720, and how many to reach 1000? Find the total number of clicks.

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A 127
B 147
C 172
D 271

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Answer: C. 172

For finding the button clicks, we will have to divide the numbers by 10 and then add them.
720/10+1000/10
72+100
172
Thus, 172 is the answer.

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A calculator only has a +10 button. Starting from 0, how many clicks does it take to reach 720, and how many to reach 1000? Find the total number of clicks.

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