Each laundry basket has 10 sweaters.
How many sweaters are in 4 laundry baskets?
How many sweaters are in 4 laundry baskets?
| Number of laundry baskets | Number of sweaters |
| 1 | 10 |
| 2 | 20 |
| 3 | 30 |
| 4 | ? |
20
40
10
30
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