Find ‘P’ and ‘Q’ in the addition.
P
+ P
+ P
_____
Q P
P = 5, Q = 1
If the division N ÷ 2 leaves no remainder (i.e, zero remainder), what might be the one’s digit of N?
Suppose that the division N ÷ 5 leaves a remainder of 4 and the division N ÷ 2 leaves a remainder of 1. What must be the one’s digit of N?
Check the divisibility of the following number by 9.
1. 108 2. 616 3. 294
4. 432 5. 927