The problem of adding 23 and 40 is trivial. Since 2 + 4 = 6, we add the tens column and get 60; there is only 3 in the ones column so the answer is 63.
Chat with our AI personalities
2 3 5 7 11 13 17 19 23 29 31 and 37 are the prime numbers you can use. Possible options are: 3 + 37 = 40 11 + 29 = 40 2 + 7 + 31 = 40 3 + 7 + 13 + 17 = 40 17 + 23 = 40 3 + 7 + 13 + 17 = 40
If you answered 23 correct out of 40 questions, your percent correct is 57.5%
To find the sum of all prime numbers between 20 and 40, we first list out the prime numbers in that range: 23, 29, 31, 37. Then, we simply add them together: 23 + 29 + 31 + 37 = 120. Therefore, the sum of all prime numbers between 20 and 40 is 120.
There are two answers to that. If you get 80% of 40 and add it on, you get 72. If you get 80% as a value and add it to 40, you get 40.8
46 is between 40 and 50
If Bill says that he can add 23 and 40 without regrouping he is correct. Both numbers can easily be added in your head.
How about: 17+23 = 40 as one example
Add 40 and then take away 4.
63
Numbers that would require regrouping in the ones place when added to 21 are any numbers from 9 to 19. When adding a number in this range to 21, the sum will exceed 30, necessitating regrouping in the ones place to carry over to the tens place. For example, when adding 19 to 21, the sum is 40, requiring regrouping.
23 out of 40 as a percentage = 100*23/40 = 57.5%
63
37 and 3 29 and 11 23 and 17
23+17 is 40.
23/40 as percentage = 23/40 x 100 %= 57.5%It is: 57.5%
40% = 0.40 Therefore, 40% off $23 = $23 - (0.4 x $23) = $13.80
23/40 = 0.575