Let’s work through each problem step by step.
We are rounding numbers to the
nearest ten using a number line. The rule is:
- If the number is closer to the lower ten, round down.
- If it’s closer to the higher ten, round up.
- If it’s exactly in the middle (like 45), we usually round up — but here, since we’re using number lines, we’ll see which ten it’s visually closer to.
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1.
46
Number line goes from 40 to 50. Midpoint is 45.
46 is just after 45 → so it’s closer to 50.
✔ Round to
50
2.
74
Number line from 70 to 80. Midpoint is 75.
74 is before 75 → closer to 70.
✔ Round to
70
3.
28
Number line from 20 to 30. Midpoint is 25.
28 is after 25 → closer to 30.
✔ Round to
30
4.
59
Number line from 50 to 60. Midpoint is 55.
59 is very close to 60 → definitely closer to 60.
✔ Round to
60
5.
81
Number line from 80 to 90. Midpoint is 85.
81 is before 85 → closer to 80.
✔ Round to
80
6.
37
Number line from 30 to 40. Midpoint is 35.
37 is after 35 → closer to 40.
✔ Round to
40
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Final Answer:
50, 70, 30, 60, 80, 40
Parent Tip: Review the logic above to help your child master the concept of rounding to nearest 10 worksheet.
