Find the sum of each of the following sets of numbers by grouping them suitably.
$1956 + 29759 + 2143 + 7256 + 144 + 344 + 241 + 2157$

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Solution

Find the sum we need to arrange in a small group:
$1956 + 29759 + 2143 + 7256 + 144 + 344 + 241 + 2157 = (1956 + 144) + (29759 + 241) + (2143 + 2157) + (7256 + 344) = 2100 + 30000 + 4300 + 7600 = 44000$
Hence, the sum is $44000$ .

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