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Addition and Subtraction of Integers

i Verify a - ...

Question

Question 8(i)
Verify a - (-b) = a + b for the following values of a and b.
a = 21, b = 18

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Solution

Given,a = 21, b = 18
a - (-b) = 21- (-18) = 21 + 18 = 39
a + b = 21 + 18 = 39
$∴$ a - (-b) = a + b = 39

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Q. Verify a-(-b)=a+b for the following values of a and b.
(i) a=21, b=18
(ii) a=118, b=125

Verify $a - (- b) = a + b$ for the following values of $a$ and $b$ .
(i) $a = 21$ , $b = 18$ (ii) $a = 75, b = 10$

Verify a − (−b) = a + b for the following values of a and b.

(i) a = 21, b = 18

(ii) a = 118, b = 125

(iii) a = 75, b = 84

(iv) a = 28, b = 11

Question 8(ii)
Verify a−(−b) = a + b for the following values of a and b.
a = 118, b =125

Question 8(iv)
Verify a - (-b) = a + b for the following values of a and b.
a = 28, b = 11

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Addition and Subtraction of Integers

Standard VII Mathematics

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