Problem 5 · 2012 Math Kangaroo
Easy
Arithmetic & Operations
division
13 children play hide and seek. One of them is the seeker. After a little while 9 children have been found. How many are still hiding?
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Answer: A — 3
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Hint 1 of 2
One of the 13 is the seeker, so how many are actually hiding?
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Hint 2 of 2
Subtract the children already found from the number hiding.
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Approach: subtract in two steps
- One child seeks, so 13 - 1 = 12 children are hiding.
- Of those, 9 have been found, leaving 12 - 9 = 3.
- So 3 children are still hiding.
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