Question

Estimate the product by rounding 2×6254

Answer 1

Estimate 6254 to 6000. 2 times 6000 equals to 12000

Answer 2

First round 6254 to 6000 then multiply it by 2.
6,254=6,000x2=12,000
If you need help on the multiplying bit here is how you do it: 
First take the whole numbers so 6 and 2. Next multiply them. 6x2=12. Then all you do is add the zeros. So in this case there are three zeros so 12,000 is your estimated answer.