For the following statement write (T) for true and (F) for false: The sum of a negative integer and a positive integer is always a negative integer.

False.Solution: It can be negative or positive. For example: -2 + 3 = 1 gives a positive integer, but -5 + 2 = -3 gives a negative integer.

For the following statement write (T) for true and (F) for false:…

Estimate the following products by rounding off the first number downwards and the second number upwards:
472 × 76

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Use convenient groupings and find the values of:
(-51) × (-47) × (-19)

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Fill in the blank.
Area of a rectangle = (______) × (______).

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Represent the following number on the number line:
1.9

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ln the following, state if the statement is true (T) or false (F):
A circle is symmetric about each of ita diameters.

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State the kind of angle, in each case, formed between the following directions:
East and West

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Evaluate:
8 × (-5)

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Which of the following is meaningless?

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Fill in the blank.$(b^2 - a^2) - (a^2 - b^2)$ = _____.

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Fill in the blanks by using <, >, = or ≤.
OP OR, where O is the centre of the circle, P lies on the circle and R lies in the exterior of the circle.

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