Question

Estimate the product of 42 and 58.​

Answer 1

Answer:

42 is estimated to the nearest ten = 40.

58 is estimated to the nearest ten = 60

Hence, the required estimation

$= (40 \times 60) = 2400$

2400 iss the answer.

Hope it helps♥.

Answer 2

42 is rounded down to 40 (one's place less than 5)

58 is rounded up to 60 (one's place greater than 5)

Product of 40 * 60 = 2400

Also 42*58 = 2436 that is close to 2400.