5 tens means addition of 10 into 5 times and 13 ones means addition of 1 into 13 times. Thus, 5 tens and 13 ones = 5(10) + 13(1) = 50 + 13 = 63. Therefore, the number equal to 5 tens and 13 ones is 63.Hope this helps. Let me know if you need additional help!I hope that I could help :) sometines those questions are tricky. Let me know if you need additional help