510 + 810 = 1320
All you need to do is add the numbers together like you would for two plus two. To check your work, a calculator will be a great option,but before you use one:for more of a challenge USE YOUR BRAIN! The answer is 288.
612
510 cm or 5.10 m
48
No, they are not.
9 + 510 + 4 = 523
510 + 810 = 1320
40100 + 510 = 40610
520
3610
You would multiply 510 by 1.2 to get your answer. The idea is: 510 plus twenty percent of 510 would be 1 X 510 + .2 X 510. Factoring out the 510 from each of these terms you get 510 (1 + .2)
366
Expressed as an improper fraction in its simplest form, by dividing both the numerator and denominator by 8, 48/510 is equal to 6/65, or six sixty-fifths.
1544
144
All you need to do is add the numbers together like you would for two plus two. To check your work, a calculator will be a great option,but before you use one:for more of a challenge USE YOUR BRAIN! The answer is 288.