Yes The key word is about and the word about wants us to estimate and round
So 18 is rounded to 20 And 12 is rounded to 10
Now multiply 20•10 which is about 200 cards You're multiplying 20 and 10 because your looking for the total amount in all 18 (20 because rounded) packs of baseball cards And multiplying the 12 (10) tells you about how many card are in the packs altogether
so the actual answer would be 216 base ball cards and thats not rounded So 200 is the rounded (estimated) answer and 216 is the actual answer for the number of base ball cards Matthew has