This is an idea that can be used at many age-levels., You might need to explain that all the digits have to be used, but they can be combined to make other numbers. Also brackets can be used if needed. OUr example is (hopefully) quite easy becuase 1400 + 1262 uses all the digits and gives the palindrome 2662. But there are many more possibilities., We suggest using a step-by-step approach, such as:, , 62 = 36, 36 x 4 = 144, 144 x 10 = 1440, 1440 + (2 - 1 - 0) = 1441, , And there is the...