Answer 1 ==
Any power of 5 ends in 5. When you multiply by 2, it will end in zero.
2506 2506 is divisible by 7. (6 is 3 times of 2; 2+5+0+6=13; 5=6–1)
The digit 2 is in the ones place
For the number 25, the 5 is the ones digit (and the 2 is the tens digit). So, for 99 the second 9 from left to right is the ones digit.
285
The ones digit is 5 less than 10 (10-5=5) The tens digit is 2 more than the ones digit (5+2=7) The entire number is less than 200. It could be either "75" or "175", but is probably "175" or they would have said that the entire number was less than 100.
The answer depends on what the tens digit is greater than, and what the ones digit does then.
1 out of 2
When a number is a multiple of 5, the possible values for the ones digit are zero and five.
The 5 in the tens place is 50. The 5 in the ones place (known as the units place in Britain) is only a 5. Therefore, the 50 is ten times greater than the 5.
When you multiply a two digit number by another, you use the distributive property because you basically are taking the tens digits times both the other tens digit and the ones digit, then the ones digit times both the other tens and other ones digits. That sounds confusing, I know, but I'll explain. If you're taking 12 times 25, you are basically doing the problem (10+2) x (20+5). You take ten times twenty, then ten times five, then two times twenty, then two times five, and add them all together.
It is the ones digit, so it has a value of 5
the second digit from the decimal point. 7 ones . decimal 5 tenths 2 hundredths 2 thousandths