Question 1039118: the reasoning use here shows that there is one and only one solution to this problem. when solving is found. however, inferential guess and test simplifies the solution process by looking for unique aspects of the problem. here the natural places to start are n+n, u+u, and the fact that x+fyeilds a two digits.
2. use four 4s and some of the symbols +,x,-,+,()to give expressions for the whole numbers from 0 through 9: for example 5=(4x4+)+4.
3.for each shape in figure 1.7, make straight cut so that each of the two pieces of the shape can be rearranged to form a square.
figure 1.7
Answer by solver91311(24713)   (Show Source):
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