A spider is climbing a wall. It climbs up 5 cm, falls back 3 cm, climbs up another 4 ern,falls back 6 cm and climbs up another 5 cm. How far the spider has climbed from its starting point
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Answer:
See the question.
+ symbol is used as it climbs and - symbol is used as it falls back:
+5-3+4-6+5
= 14 - 9
= 5 cm
(this simplification is done according to BODMAS
Therefore, the spider has climbed 5cm from its start.
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