Respuesta :

Answer:

4

Step-by-step explanation:

4*10=40

40-36=4

hope this helps :)

prosborough198p2ub41

Answer:

4postcards left over

Step-by-step explanation:

If she buys 4 packs of 10 postcards the she has 4*10=40 postcards and if she only needs 36 then she has 40-36=4 postcards leftover.