5
Every odd number. Multiplying two even numbers gives an even number. Multiplying an odd and an even number gives an even number. Multiplying two odd numbers gives an odd number.
Yes
41, 43, 45 consecutive odd when squared and added equal 5555
Multiplying a sum by a number gives the same result as multiplying each addend by the number and then adding the products together.
same
There is no two digit number which, when added to Y gives Y.
The 3 is in the tens column, so it is thirty;Multiplying this by 1000 gives thirty thousand.
100000
Multiplying or dividing a positive and negative gives a negative result. Multiplying or dividing two negatives gives a positive result.
The smallest 5 digit odd number is: 10001 The greatest 4 digit even number is: 9998 Subtracting 9998 from 10001 gives you 3.
77. This is the only one that takes 4 steps: from 77 to 49 to 36 to 18 to 8.
Multiplying each number by 4 gives you the (decimated) .52 answer.