851.
5483
what number has 3 hundreds, 4 more tens than hundreds, and 1 more one than hundreds
617
687
the second one .... first # = hundreds second # = tens third # = ones
600 + 50*10 + 0*1 = 600+500 = 1100
It is 689.
tens place 1 thousands 6 hundreds 7 tens 5 one(s)
100
There is no four digit number where the ones is twice the tens, the hundreds is five less than the ones, and the thousands is the sum of the tens and hundreds. int ones, tens, hundreds, thousands; for (thousands=1; thousands<10; thousands++) { /**/ for (hundreds=0; hundreds<10; hundreds++) { /**/ /**/ for (tens=0; tens<10; tens++) { /**/ /**/ /**/ for (ones=0; ones<10; ones++) { /**/ /**/ /**/ /**/ if (ones != 2 * tens) break; /**/ /**/ /**/ /**/ if (hundreds != ones - 5) break; /**/ /**/ /**/ /**/ if (thousands != tens + hundreds) break; /**/ /**/ /**/ /**/ printf ("dd\n", thousands, hundreds, tens, ones); /**/ /**/ /**/ } /**/ /**/ } /**/ } }
15 638 can be made with 1 ten, 5 ones, 6 hundreds, 3 tens, and 8 ones; 1 ten, 8 ones, 6 hundreds, 3 tens, and 5 ones; or 6 ones, 5 hundreds, 3 tens, 8 ones, and 1 ten.
27 plus 81 is 108. This is because if you add the ones place, which would be the 7 of 27 and the 1 of 81 you get 8, which becomes the answer's one place. You then do the same thing except with the tens place, which are the numbers 2 and 8. Since this gives you 10, a double digit number, the 0 stays in the tens place and the 1 carries over to the hundreds place. So if you put the 8 in the ones place, 0 in the tens place, and 1 in the hundreds place, you get the number 108.