First, we need to determine the total number of tins ordered by the shop. Since each box contains 8 tins and the shop orders 12 boxes, we would calculate the total number of tins by multiplying the number of boxes by the number of tins per box:
Total tins = Number of boxes * Number of tins per box
Total tins = 12 * 8
Total tins = 96
So, the shop has ordered a total of 96 tins.
Next, we'll calculate the total number of marbles ordered. Since each tin contains 35 marbles, we multiply the total number of tins by the number of marbles per tin:
Total marbles = Total tins * Number of marbles per tin
Total marbles = 96 * 35
Total marbles = 3360
Therefore, the shop has ordered a total of 3360 marbles.