Question: Karen hangs 6 ferns around her house. Each fern has 7 fronds, and each frond has 30 leaves. How many leaves do all the ferns have? Think carefully first, then make a decision:
First find the total number of fronds on all the ferns: 7 fronds / fern * 6 ferns = 42 fronds. Then find the total number of leaves on 42 fronds: 42 fronds * 30 leaves / frond = 1260 leaves. So the answer is 1260.