Choose the equations you could use to find the number of napkins that remain after lunch and dinner. t represents the napkins that remain after lunch and dinner.
1) 325 - 113 = t
2) 645 - 438 = t
3) 645 - 325 = t
4) 645 - 212 = t
1) 325 - 113 = t
2) 645 - 438 = t
3) 645 - 325 = t
4) 645 - 212 = t