Question

1. estimate the product by rounding each number to the nearest ten. then find the product. 68 × 321 estimate: ____ actual product: __ is your estimate an underestimate or overestimate? ____

Explanation:

Step1: Round 68 to nearest ten

68 is closer to 70 than 60, so \( 68 \approx 70 \).

Step2: Round 321 to nearest ten

321 is closer to 320 than 330, so \( 321 \approx 320 \).

Step3: Calculate the estimate

Multiply the rounded numbers: \( 70 \times 320 = 22400 \).

Step4: Calculate the actual product

Multiply 68 and 321: \( 68 \times 321 = 21828 \).

Step5: Compare estimate and actual

Since \( 22400 > 21828 \), the estimate is an overestimate.

Answer:

Estimate: \( 22400 \)
Actual product: \( 21828 \)
Is your estimate an underestimate or overestimate? Overestimate