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Question
The sum of two consecutive odd numbers is divisible by 4. Verify this statement with the help of some examples.
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Solution
The sum of two consecutive odd numbers is divisible by 4.
For example : 3 + 5 = 8 and 8 is divisible by 4.
3 + 5 = 8, which is divisible by 4
15 + 17 = 32, which is divisible by 4
19 + 21 = 40, which is divisible by 4.
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Monto cat is waiting for somebody. Do you know for whom he is waiting? There is a trick to find out.
- Mark with a red dot all the numbers which can be divided by 2.
- Mark a yellow dot on the numbers which can be divided by 3 and a blue dot on the numbers which can be divided by 4.
- Which are the boxes which have dots of all three colours?
- What are the letters on top of those boxes?
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Using the divisibility test, determine which of the following number is divisible by 4; by 8:
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Using the divisibility test, determine which of the following number is divisible by 4; by 8:
12159
Using the divisibility test, determine which of the following number is divisible by 4; by 8:
21084
Which pair of numbers both satisfy the divisibility rule for 4?
Which number is NOT divisible by 4?
Consider the number 1,027,516. Which concise step is sufficient to confirm its divisibility by 4?
