Example Question - rounding numbers
Here are examples of questions we've helped users solve.
Finding the Significant Figures in a Number
<p>Pertama, kita perlu faham definisi angka bererti (atau significant figures dalam Bahasa Inggeris). Angka bererti adalah angka yang memberikan makna bagi resolusi pengukuran. Untuk bilangan 3 700, terdapat dua angka bererti, iaitu 3 dan 7, kerana nombor-nombor seterusnya (0 di dalam kes ini) berfungsi sebagai penunjuk kedudukan angka bererti dan tidak dianggap sebagai angka bererti jika tiada nombor lain selepasnya yang tidak sifar.</p> <p>Maka, bilangan angka bererti bagi nombor 3 700 adalah 2.</p>
Place the Given Numbers in the Appropriate Place Value Columns
<p>We are given a list of numbers and two empty columns labeled "na desetitisice" and "na stotisice", which in English likely refer to "to tens of thousands" and "to hundreds of thousands". This implies we need to round the numbers to the nearest tens of thousands and hundreds of thousands, respectively. To achieve this, let's round each number accordingly:</p> <p>For "na desetitisice": - 185 270 rounds to 190 000 (to the nearest ten thousand) - 232 360 rounds to 230 000 (to the nearest ten thousand) - 356 871 rounds to 360 000 (to the nearest ten thousand) - 621 923 rounds to 620 000 (to the nearest ten thousand) - 467 106 rounds to 470 000 (to the nearest ten thousand) - 544 278 rounds to 540 000 (to the nearest ten thousand)</p> <p>For "na stotisice": - 185 270 rounds to 200 000 (to the nearest hundred thousand) - 232 360 rounds to 200 000 (to the nearest hundred thousand) - 356 871 rounds to 400 000 (to the nearest hundred thousand) - 621 923 rounds to 600 000 (to the nearest hundred thousand) - 467 106 rounds to 500 000 (to the nearest hundred thousand) - 544 278 rounds to 500 000 (to the nearest hundred thousand)</p>
Effective Estimation Strategy for Finding the Sum of Two Lengths of Ribbon
The image contains a question that asks for an effective estimation strategy for finding the sum of two lengths of ribbon, which are 47.6 inches and 39.75 inches. The options given are: A. Round 39.75 to 30 and 47.6 to 40, then add. B. Round 39.75 to 40 and 47.6 to 48, then add. C. Add 47.6 and 39.75, then round the answer. D. Subtract 39.75 from 47.6, then round the answer. The correct estimation strategy to find the sum would be: B. Round 39.75 to 40 and 47.6 to 48, then add. This is because rounding to the nearest whole number that is easy to add will give you a good estimation of the sum. Rounding 39.75 to 40 and 47.6 to 48 and then adding them together gives 40 + 48 = 88, which is a close estimate of the actual sum.
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