In a game called WIPEOUT, we are to “wipe out” digits from a calculator’s display without changing any of the other digits. “Wipeout” in this case means to replace the chosen digit(s) with a 0. For example, if the initial number is 54,321 and we are to wipe out the 4, we could subtract 4000 to obtain 50,321. Complete the following two problems and then try other numbers or challenge another person to wipe out a number from the number you have placed on the screen:
a. Wipe out the 2s from 32,420.
b. Wipe out the 5 from 67,357.
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