You can get zero by changing some of the plus signs. Which operation must come first?
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No car can stop instantaneously. How long does it take for the BrillCar to fully stop?
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Jeremiah wants to use every mode of transportation while sight-seeing. Where should he begin?
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The participants in this Numbers Bunchers puzzle tell you what their products aren’t divisible by. How can you distribute all the numbers?
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The inequality between arithmetic and geometric means allows us to find bounds for sums and products. What can't the four ages sum up to?
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In this jigsaw map puzzle, the clues determine the locations of three of the pieces. Where can we place the fourth piece?
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Different bulb combinations produce different amounts of light. Which circuit will shine brighter?
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