Nova Math - Problem Set B: Substitution (Plugging in)
Question Name Average time to answer (seconds) Total correct answers Total incorrect answers
The ten’s digit of a two-digit number is twice the unit’s digit. ... ...
If , then N =
Suppose half the people on a bus exit at each stop and no additional passengers ... ...
The sum of the digits of a two-digit number is 12, and the ten’s ... ...
If , then x could be
Which one of the following is a solution to the equation x4 − 2x2 ... ...
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