(–125) + (–30) = –155 (Moving 30 steps left from –125). (+105) – (–55) = +160 (Subtracting –55 is adding +55). (+80) – (–150) = +230 (Adding +150 to +80). (–99) – (–200) = +101 (Moving 200 steps right from –99). Class 6 NCERT ...
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(–5) + 0 = –5 (Adding 0 doesn’t change the value) 7 + (–7) = 0 (Opposites cancel out) (–10) + 20 = 10 (20 steps right from –10) 10 – 20 = –10 (20 steps left from 10) Class 6 Mathematics Chapter 10 ...