Number System — Maths STD 6 — Question

Write the opposite of the following:
A loss of Rs. 7

Fill in the blank:
The least number which when divided by 6, 9, 12 and 18 leaves no remainder is _____.

Simplify:
1056 + (-798) + (-38) + 44 + (-1)

Which of the following statements are true and which are false?
The sum of two odd numbers is an odd number.

Write 'T' for true and 'F' for false statement.
The HCF of two given numbers is always a factor is their LCM.

Fill in the blank in the following:
1 is neither _____ nor ______.

The weights of new born babies (in kg) in a hospital on a particular day are as follows:
2.3, 2.2, 2.1, 2.7, 2.6, 3.0, 2.5, 2.9, 2.8, 3.1, 2.5, 2.8, 2.7, 2.9, 2.4
How many babies weigh more than 2.8kg?

Write (T) for true and (F) for false against the following statements:
If a number divides the sum of two numbers exactly, it must exactly divide the numbers separately.

Using the number line, write the integer which is:
2 less than -3