14,21,28,35,42,49,56,63,70,77,84,91,98
No two digit prime number exists that is a multiple of 7. All two digit numbers that are multiples of 7 are compositenumbers.
The correct phrasing is "seven and five are thirteen." In this case, "seven and five" are two separate numbers that are being added together to equal thirteen. When combining two distinct quantities, the verb should agree with the plural subject "seven and five," making "are" the appropriate verb choice.
Assuming you mean digits and not didgets, the answer is 6.
22, 33, 44, 55, 66, 77, 88, 99
no it is a prime number (prime means its multiples are only 1 and itself composite numbers can have multiples of many other things)
495
The two-digit multiples of nine are 18, 27, 36, 45, 54, 63, 72, 81, 90, 99.
All of the odd numbers between 11 and 99 inclusive are two digit numbers that are not multiples of 2. There are 45 of them.
60 numbers
81
95, is the two digits after the last digit of the multiple of 5's.
There is no difference in the rules for thirteen times table as for any other multiplication tables. Whether one, two or thirteen, each table shows the increase using multiples of one, two or thirteen, etc.
4500 of them.
70 and 90
No two digit prime number exists that is a multiple of 7. All two digit numbers that are multiples of 7 are compositenumbers.
The correct phrasing is "seven and five are thirteen." In this case, "seven and five" are two separate numbers that are being added together to equal thirteen. When combining two distinct quantities, the verb should agree with the plural subject "seven and five," making "are" the appropriate verb choice.
30, 60 and 90.