Round 564 to the nearest ten - OCR - GCSE Maths - Question 5 - 2021 - Paper 1
Question 5
Round 564 to the nearest ten.
Round 438749 to 3 significant figures.
Worked Solution & Example Answer:Round 564 to the nearest ten - OCR - GCSE Maths - Question 5 - 2021 - Paper 1
Step 1
Round 564 to the nearest ten.
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Answer
To round 564 to the nearest ten, focus on the digit in the units place, which is 4. Since 4 is less than 5, you round down. Therefore, 564 rounded to the nearest ten is 560.
Step 2
Round 438749 to 3 significant figures.
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Answer
To round 438749 to three significant figures, identify the first three non-zero digits, which are 4, 3, and 8. Look at the next digit (7) to decide whether to round up or down. Since 7 is greater than or equal to 5, you round up the last significant figure (8) to 9. Thus, 438749 rounded to three significant figures is 439000.
