Introduction to integers
Answers
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Answer:
1. Whole number:- 0,1,2,3,4,5....
2. Natural number:- 1,2,3,4,5...
3. Positive number:- +1,+2,+3,+4,+5...
4. Negative number:- -1,-2,-3,-4....
5. Integers:- [-4,-3,-2,-1,0,] [+1,+2,+3,+4.....]
Left Side Right Side
6. Every negative is always less than'0', and every positive number.
7. Longest negative number is -1.
8. Every positive number is always greater than'0'.
Rules of Sign
For doing Addition
i) (+)+(+) = (+)
ii) (+)+(-) = Bigger no [Sub] sign
iii) (-)+(+) = Bigger no [Sub] sign
iv) (-)+(-) = (+)
For example:-
(+7)+(+5) = 7+5 = 12
(+7)+(-5) = 7-5 = 2
(-7)+(+5) = -7+5 = -2
(-7)+(-5) = -7-5 = -12
2+8 = 10
,3+(-12) = -9
(-11)+7 = -4
(-4)+(-4) = -4-4 = -8
For doing Subtraction
i) (+)-(+) = Bigger no sign [Sub]
ii) (+)-(-) = (+) [Add]
iii) (-)-(+) = (-)
iv) (-)-(-) = Bigger no sign [Sub]
For example:-
(+7)-(+5) = 7-5 = 2
(+7)-(-5) = 7+5 = 12
(-7)-(+5) = -7-5 = -12
(-7)+(-5) = -7+5 = -2
For doing Multiplication
i) (+)×(+) = (+)
ii) (+)×(-) = (-)
iii) (-)×(+) = (-)
iv) (-)×(-) = (+)
For example:-
(+11)×(+7) = 77
(+10)×(-4) = -40
(-3)×(+9) = -27
(-8)×(-4) = +32
For doing Division
i) (+)÷(+) = (+)
ii) (+)÷(-) = (-)
iii) (-)÷(+) = (-)
iv) (-)÷(-) = (+)
For example:-
(+10)÷(+5) = +2 or +10/+5 = 2
(+8)÷(-2) = -4 or 8/-2 = -4
(-4)÷(+16) = -1/4 or -4/16 = -1/4
(-6)÷(-3) = 2 or -6/-3 = 2
The words are used to indicate (+ve) Positive and ( -ve) Negative Sign.
Below:- (-ve)
Upper:- (+ve)
Above:- (+ve)
Greater:- (+ve)
Less :- (-ve)
Decrease:- (-ve)
Increase:- (+ve)
Profit:- (+ve)
Loss:- (-ve)
Gain:- (+ve)
Upward:- (+ve)
Downward:- (-ve)
Arise:- (+ve)
Drop:- (-ve)
Sum:- (+ve)
Difference:- (-ve)
Less than:- (-ve)
Deep into the sea:- (-ve)
More:- (+ve)
Greater than:- (+ve)
Move up in:- (+ve)
The Sky:- (+ve)
