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The mass of a bag is 3kg3kg rounded to the nearest kilogram. What is the lower bound for the mass?
This is a non-calculator question.
3.5kg3.5kg
22
2.5kg2.5kg
4kg4kg

Solution Road

Correct answer:

2.5kg2.5kg
Solution

1kg÷2=0.5kg1kg \div 2 = 0.5kg

30.5=2.5kg3-0.5 = 2.5kg
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