To estimate the total number of stuffed bears in the toy store's order, we can multiply the number of crates by the number of bears in each crate.
The calculation is:
\[ 26 \text{ crates} \times 21 \text{ bears/crate} = 546 \text{ bears} \]
Now, we need to find the best estimate from the provided options.
We can round the numbers for easier estimation:
- 26 can be rounded to 30.
- 21 can be rounded to 20.
Now we recalculate using the rounded numbers:
\[ 30 \text{ crates} \times 20 \text{ bears/crate} = 600 \text{ bears} \]
The best estimate of how many stuffed bears the store ordered is therefore 600.