Write five number which you can decide by looking at their unit digit that they are not a square number
Answers
Step-by-step explanation:
1 3 6 7 9 0 are thw unit digit that they are not a square number
Step-by-step explanation:
1.) The following number are not perfect squares. Give reason:
A number ending with 2, 3, 7 or 8 cannot be a perfect square.
(i) 1547
Its last digit is 7. Hence, 1547 cannot be a perfect square.
(ii) 45743
Its last digit is 3. Hence, 45743 cannot be a perfect square.
(iii) 22453
Its last digit is 8. Hence, 8948 cannot be a perfect square.
(iv) 333333
Its last digit is 3. Hence, 333333 cannot be a perfect square.
2.) Show that the following numbers are not perfect squares:
A number ending with 2, 3, 7 or 8 cannot be a perfect square.
(i) 9327
Its last digit is 7. Hence, 9327 is not a perfect square.
(ii) 4058
Its last digit is 8. Hence, 4058 is not a perfect square.
(iii) 22453
Its last digit is 3. Hence, 22453 is not a perfect square.
(iv)743522
Its last digit is 2. Hence, 743522 is not a perfect square.
3.) The square of which of the following numbers would be an odd number?
The square of an odd number is always odd.
(i) 731
731 is an odd number. Hence, its square will be an odd number.
(ii)3456
3456 is an even number. Hence, its square will not be an odd number.
(iii) 5559
5559 is an odd number. Hence, its square will not be an odd