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Describe a way to check the correctness of a subtraction answer?
Add your answer with the lower number of the subtraction problem and if it adds up to the upper number then you are right.
How do you beat the swap test on Counterfeit Island?
There are only 4 paintings that can be moved, one in each wing that is in the wrong place. Move them clockwise into the next wing.That is, move the upper left to the upper right, the upper right to the lower right, the lower right to the lower left, and the lower left to the upper left.
How you compute the next row in pascal's triangle?
Start with 1 in the new row, to the left of the first number in the row above. Then, moving to the right, each number is the sum of the two numbers above it. Finally, finish with a 1 (sum of the 1 to the interior, and 0).Each hexagonal cell contains the sum of the integers directly above it to the upper left and upper right.
What shape has the most angles?
There is no upper limit to the number of angles you can have.
How do you write squared in math symbols?
It is the small 2 on the upper right of numbers. For example 32 . If you're using Microsoft word, type X2 and then highlight just the "2". Then right click on it, hit font and then select "superscript"
