Math Homework Unit 3 Section D
A carpenter has 590) nails in his tool bag. He finds a box with some nails in his truck.
Then, he uses 211 nails at a job site. Now, he has 520 nails. How many nails does the
carpenter find in his truck?
The carpenter finds
My answer is 141

591-211=379

520-379=141

Use drawings, numbers or words. Explain how you can use estimation to make sure your answer makes sense.

I need help on how to use estimation. Thanks!!