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Practice each question, then open the answer or worked solution.
Every integer less than 0 has the sign
(A) + (B) – (C) × (D) ÷
Solution:-
(B) –
The numbers –1, –2, –3, –4, ……. are referred to as negative integers.
All negative integers are less than zero.
The integer ‘5 units to the right of 0 on the number line’ is
(A) +5 (B) –5 (C) +4 (D) – 4
Solution:-
(A) +5
The predecessor of the integer –1 is
(A) 0 (B) 2 (C) –2 (D) 1
Solution:-
(C) –2
The number which comes immediately before a particular number is called its predecessor.
To find the predecessor of a number, subtract one from the given number.
So, predecessor of -1 = -1 -1 = -2
Number of integers lying between –1 and 1 is
(A) 1 (B) 2 (C) 3 (D) 0
Solution:-
(A) 1
Integer that comes between -1 and 1 is 0.
Number of whole numbers lying between –5 and 5 is
(A) 10 (B) 3 (C) 4 (D) 5
Solution:-
(D) 5
We know that, whole numbers start from 0.
Then, the number of whole numbers between -5 and 5 are 0, 1, 2, 3, and 4.
The greatest integer lying between –10 and –15 is
(A) –10 (B) –11 (C) –15 (D) –14
Solution:-
(B) -11
In case of negative integer, small number is greater.
The least integer lying between –10 and –15 is
(A) –10 (B) –11 (C) –15 (D) –14
Solution:-
(D) –14
In case of negative integer, big number is smaller.
On the number line, the integer 5 is located
(A) to the left of 0 (B) to the right of 0
(C) to the left of 1 (D) to the left of –2
Solution:-
(B) to the right of 0
In which of the following pairs of integers, the first integer is not on the left of the other integer on the number line?
(A) (–1, 10) (B) (–3, –5) (C) (–5, –3) (D) (–6, 0)
Solution:-
(B) (–3, –5)
The integer with a negative sign (–) is always less than
(A) 0 (B) –3 (C) –1 (D) –2
Solution:-
(A) 0
Negative integers are always come left to the 0, so negative integers always less than 0.