1,000 of them do.
6 of them.
9 of them.
700 ÷ 10 = 70
80,000 ÷ 10 = 8,000 (there are eight thousand tens)
of course 50 tens equal 500! 10 tens equal 100.
A thousand of them.
70 / 10 = 7 so answer is 7 thousands 7,000 x 10 = 70,000
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); /**/ /**/ /**/ } /**/ /**/ } /**/ } }
There would be: 500*10 = 5000
The product of 10 tens is 100
280/10 = 28