Question
Ryder used front-end estimation to estimate the product of (–24.98)(–1.29). What was his estimate?
–32
–20
20
32
–32
–20
20
32
Answers
GPT-4o mini
To use front-end estimation for the product of (–24.98)(–1.29), we focus on the leading digits of each number:
1. For –24.98, we round to –20 (the front-end digit is 20, and we ignore the decimals).
2. For –1.29, we round to –1 (again taking only the front-end digit).
Now, we multiply the estimates:
\[
(-20) \times (-1) = 20
\]
Therefore, Ryder's estimate would be **20**.
1. For –24.98, we round to –20 (the front-end digit is 20, and we ignore the decimals).
2. For –1.29, we round to –1 (again taking only the front-end digit).
Now, we multiply the estimates:
\[
(-20) \times (-1) = 20
\]
Therefore, Ryder's estimate would be **20**.