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chapter 2 Operations with Integers - Part 2

Subtract: (21) − (-21)

Type: MCQ • Marks: 1
Subtract: (21) − (-21)
Options
A. 0
B. 39
C. -42
D. 42
Explanation
Subtracting -21 means adding its additive inverse: (21) − (-21) = (21) + (21) = 42.
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Class 7th Ganita Prakash 2

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