Estimation means : , Exact measurement , Rough idea or guess, Measuring with scale, Which of the following gives the most accurate result? , Hand span , Guessing , Using a ruler , Which unit is best for measuring a pencil ? , Centimetre, Meter, Which unit is best for measuring the length of a classroom?, Millimetre, Centimetre, Metre, 1 metre is equal to: , 1000 centimetres, 100 centimetres, How does proper measurement help us ?, It helps us waste resources , It helps us save resources and money and avoid being cheated, Which of the following is an example of estimation? , Measuring a book with a ruler, Using a measuring tape, Counting exact length, Saying a table/cloth is about 1 metre long, Why is it important to save resources and use them wisely ?, Because resources are unlimited and can be wasted , Because it helps us protect nature and use things responsibly for the future.

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