Advertisements
Advertisements
Question
Without making any actual division, show that the following number is divisible by 8.
1608
Advertisements
Solution
= 1600 + 8
= 8 (200 + 1)
= 8 x 201
Clearly, 1608 is divisible by 8.
APPEARS IN
RELATED QUESTIONS
Write all the factors of: 64
Write all the factors of: 98
Write the first six multiples of: 4
Without making any actual division, show that the following number is divisible by 8.
56008
Find whether the following number is divisible by 4: 678
Find whether the following number is divisible by 9: 4968
Find whether the following number is divisible by 9: 200314
Find whether the following number is divisible by 5: 66666
Find whether the following number is divisible by 5: 9207
Find whether the following number is divisible by 11: 10857
Find whether the following number is divisible by 15: 5013
In the following number, replace M by the smallest number to make resulting number divisible by 3: 64M3
State, true or false:
If a divide b and c completely, then a divides
(i) a + b
(ii) a – b
also completely.
Write down the factors of 60.
State if the following number is even or odd.
144
Write the factors of the following number.
5
Write five three-digit numbers that are multiples of 5.
The steps on which the cat jumps - ____________
The steps on which both the cat and the mouse jump - ____________
Complete the multiplication chart given here.
Look at the green boxes in the chart. These show how we can get 12 by multiplying different numbers.
12 = 4 × 3, so 12 is a multiple of both 4 and 3. 12 is also a multiple of 6 and 2, as well as 12 and 1. We say 1, 2, 3, 4, 6, 12 are factors of 12.
Look at the factor tree. Now you can make another tree like this?
Manoj had made a new house. He wants to lay tiles on the floor. The size of the room is 9 feet × 12 feet. In the market, there are three kinds of square tiles: 1 foot × 1 foot, 2 feet × 2 feet and 3 feet × 3 feet. Which size of tile should he buy for his room, so that he can lay it without cutting?
Write first five multiples of 5.
Match the items in column 1 with the items in column 2.
|
|
Column 1 |
|
Column 2 |
|
(i) |
35 |
(a) |
Multiple of 8 |
|
(ii) |
15 |
(b) |
Multiple of 7 |
|
(iii) |
16 |
(c) |
Multiple of 70 |
|
(iv) |
20 |
(d) |
Factor of 30 |
|
(v) |
25 |
(e) |
Factor of 50 |
|
|
|
(f) |
Factor of 20 |
Write all the factors of the following number.
24
Write all the factors of the following number.
20
Write all the factors of the following number.
18
Which of the following is always a factor of every number?
