Find the one’s digit of the cube of each of the following numbers.
(i) 3331 (ii) 8888 (iii) 149 (iv) 1005
(v) 1024 (vi) 77 (vii) 5022 (viii) 53
|
Number |
Number ending in |
Unit’s digit in the cube |
|
|
(i) |
3331 |
1 |
1 |
|
(ii) |
8888 |
8 |
2 |
|
(iii) |
149 |
9 |
9 |
|
(iv) |
1005 |
5 |
5 |
|
(v) |
1024 |
4 |
4 |
|
(vi) |
77 |
7 |
3 |
|
(vii) |
5022 |
2 |
8 |
|
(viii) |
53 |
3 |
7 |
Consider the following pattern:
(a) 63 (b) 83 (c) 73
Which of the following are perfect cubes?
1. 400 2. 3375 3. 8000 4. 15625
5. 9000 6. 6859 7. 2025 8. 10648
Check which of the following are perfect cubes.
(i) 2700 (ii) 16000 (iii) 64000 (iv) 900
(v) 125000 (vi) 36000 (vii) 21600 (viii) 10000
(ix) 27000000 (x) 1000
What pattern do you observe in these perfect cubes?
Which of the following numbers are not perfect cubes? (i) 216 (ii) 128 (iii) 1000 (iv) 100 (v) 46656
