How do you estimate 289 and 7

You first round 289 and get 290 then multiply it by 7

Id reccomend rounding the answer to a easier number, which in this case would show to be 300. Then multiply that by 7, but to make it even easier, take off those Zeros, multiply the 7 by 3, which would be 21, then add the zeros back and you would get a answer close enough to what the question is asking you.