debit - money immediately paid out of an account, deposit - to put money into an acoount, withdrawal - to take money out of an account, credit - the sum received in an account, integers - positive and negative whole numbers including zero, rational number  - any number that can be written as a fraction, opposite integers - located the same distance from zero, but on the other side, original number - the opposite of the opposite of a number, zero - is its own opposite, absolute value - the distance from zero on a number line, scale - intervals used on a number line,

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