Given:
[tex]425\text{ }\ast\text{ 9311}[/tex]First step is to round the numbers.
425 ==> Here, we have 3 digits, so let's round to the nearest hundred.
425 ==> 400
9,311 ==> We have 4 digits here which means this value is in thousand. Let's round to the nearest thousand.
9,311 ==> 9000
Estimate the product:
[tex]400\text{ }\ast\text{ 9000 = }3,600,000[/tex]ANSWER:
3,600,000