Rounding decimals worksheet with exercises for rounding amounts and lengths to the nearest dollar or meter.
A worksheet titled "Rounding decimals" with exercises for rounding decimal amounts and lengths to the nearest dollar or meter, featuring multiple rows of numbers and blank spaces for answers.
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Step-by-step solution for: Rounding decimals, from hundreths place to whole numbers | 4th ...
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Show Answer Key & Explanations
Step-by-step solution for: Rounding decimals, from hundreths place to whole numbers | 4th ...
Here are the solutions for each section of the worksheet.
*Rule: Look at the first decimal digit (tenths). If it is 5 or more, round up. If it is less than 5, keep the dollar amount the same.*
1. $3.47: The tenths digit is 4 (less than 5), so we round down.
* Answer: $3.00
2. $2.83: The tenths digit is 8 (5 or more), so we round up ($2 becomes $3).
* Answer: $3.00
3. $1.21: The tenths digit is 2 (less than 5), so we round down.
* Answer: $1.00
4. $3.28: The tenths digit is 2 (less than 5), so we round down.
* Answer: $3.00
5. $3.67: The tenths digit is 6 (5 or more), so we round up ($3 becomes $4).
* Answer: $4.00
6. $3.14: The tenths digit is 1 (less than 5), so we round down.
* Answer: $3.00
7. $1.93: The tenths digit is 9 (5 or more), so we round up ($1 becomes $2).
* Answer: $2.00
8. $3.05: The tenths digit is 0 (less than 5), so we round down.
* Answer: $3.00
---
*Rule: Look at the second decimal digit (hundredths). If it is 5 or more, round the tenths place up by one. If it is less than 5, leave the tenths place alone.*
1. $3.47: Hundredths is 7 → Round up.
* Answer: $3.50
2. $3.14: Hundredths is 4 → Stay same.
* Answer: $3.10
3. $6.75: Hundredths is 5 → Round up.
* Answer: $6.80
4. $7.43: Hundredths is 3 → Stay same.
* Answer: $7.40
5. $8.28: Hundredths is 8 → Round up.
* Answer: $8.30
6. $8.67: Hundredths is 7 → Round up.
* Answer: $8.70
7. $4.97: Hundredths is 7 → Round up ($4.9 becomes $5.0).
* Answer: $5.00
8. $2.43: Hundredths is 3 → Stay same.
* Answer: $2.40
9. $6.46: Hundredths is 6 → Round up.
* Answer: $6.50
10. $8.17: Hundredths is 7 → Round up.
* Answer: $8.20
11. $8.05: Hundredths is 5 → Round up.
* Answer: $8.10
12. $3.67: Hundredths is 7 → Round up.
* Answer: $3.70
13. $1.92: Hundredths is 2 → Stay same.
* Answer: $1.90
14. $2.04: Hundredths is 4 → Stay same.
* Answer: $2.00
15. $3.57: Hundredths is 7 → Round up.
* Answer: $3.60
16. $2.37: Hundredths is 7 → Round up.
* Answer: $2.40
17. $11.48: Hundredths is 8 → Round up.
* Answer: $11.50
18. $25.04: Hundredths is 4 → Stay same.
* Answer: $25.00
19. $14.67: Hundredths is 7 → Round up.
* Answer: $14.70
20. $1.37: Hundredths is 7 → Round up.
* Answer: $1.40
---
*Rule: Look at the first decimal digit (tenths). If it is 5 or more, round up the whole number. If less than 5, keep the whole number.*
1. 1.76 m: Tenths is 7 → Round up.
* Answer: 2 m
2. 4.32 m: Tenths is 3 → Stay same.
* Answer: 4 m
3. 6.75 m: Tenths is 7 → Round up.
* Answer: 7 m
4. 3.84 m: Tenths is 8 → Round up.
* Answer: 4 m
5. 7.82 m: Tenths is 8 → Round up.
* Answer: 8 m
6. 3.18 m: Tenths is 1 → Stay same.
* Answer: 3 m
7. 7.31 m: Tenths is 3 → Stay same.
* Answer: 7 m
8. 9.61 m: Tenths is 6 → Round up.
* Answer: 10 m
9. 5.42 m: Tenths is 4 → Stay same.
* Answer: 5 m
10. 12.95 m: Tenths is 9 → Round up.
* Answer: 13 m
11. 18.55 m: Tenths is 5 → Round up.
* Answer: 19 m
12. 14.56 m: Tenths is 5 → Round up.
* Answer: 15 m
13. 12.33 m: Tenths is 3 → Stay same.
* Answer: 12 m
14. 22.03 m: Tenths is 0 → Stay same.
* Answer: 22 m
15. 17.49 m: Tenths is 4 → Stay same.
* Answer: 17 m
16. 27.47 m: Tenths is 4 → Stay same.
* Answer: 27 m
17. 12.44 m: Tenths is 4 → Stay same.
* Answer: 12 m
18. 19.29 m: Tenths is 2 → Stay same.
* Answer: 19 m
19. 15.51 m: Tenths is 5 → Round up.
* Answer: 16 m
20. 27.47 m: Tenths is 4 → Stay same.
* Answer: 27 m
---
*Rule: Look at the first decimal digit (tenths). 5 or more rounds up; less than 5 stays the same.*
1. $2.32: Tenths is 3 → Stay same.
* Answer: $2.00
2. $2.54: Tenths is 5 → Round up.
* Answer: $3.00
3. $4.56: Tenths is 5 → Round up.
* Answer: $5.00
4. $5.55: Tenths is 5 → Round up.
* Answer: $6.00
5. $12.32: Tenths is 3 → Stay same.
* Answer: $12.00
6. $16.99: Tenths is 9 → Round up.
* Answer: $17.00
7. $11.52: Tenths is 5 → Round up.
* Answer: $12.00
8. $19.50: Tenths is 5 → Round up.
* Answer: $20.00
9. $5.52: Tenths is 5 → Round up.
* Answer: $6.00
10. $61.62: Tenths is 6 → Round up.
* Answer: $62.00
11. $26.32: Tenths is 3 → Stay same.
* Answer: $26.00
12. $62.50: Tenths is 5 → Round up.
* Answer: $63.00
13. $44.42: Tenths is 4 → Stay same.
* Answer: $44.00
14. $63.32: Tenths is 3 → Stay same.
* Answer: $63.00
15. $89.15: Tenths is 1 → Stay same.
* Answer: $89.00
16. $16.50: Tenths is 5 → Round up.
* Answer: $17.00
17. $54.32: Tenths is 3 → Stay same.
* Answer: $54.00
18. $17.36: Tenths is 3 → Stay same.
* Answer: $17.00
Section 1: Round to the nearest dollar
*Rule: Look at the first decimal digit (tenths). If it is 5 or more, round up. If it is less than 5, keep the dollar amount the same.*
1. $3.47: The tenths digit is 4 (less than 5), so we round down.
* Answer: $3.00
2. $2.83: The tenths digit is 8 (5 or more), so we round up ($2 becomes $3).
* Answer: $3.00
3. $1.21: The tenths digit is 2 (less than 5), so we round down.
* Answer: $1.00
4. $3.28: The tenths digit is 2 (less than 5), so we round down.
* Answer: $3.00
5. $3.67: The tenths digit is 6 (5 or more), so we round up ($3 becomes $4).
* Answer: $4.00
6. $3.14: The tenths digit is 1 (less than 5), so we round down.
* Answer: $3.00
7. $1.93: The tenths digit is 9 (5 or more), so we round up ($1 becomes $2).
* Answer: $2.00
8. $3.05: The tenths digit is 0 (less than 5), so we round down.
* Answer: $3.00
---
Section 2: Round to the nearest tenth
*Rule: Look at the second decimal digit (hundredths). If it is 5 or more, round the tenths place up by one. If it is less than 5, leave the tenths place alone.*
1. $3.47: Hundredths is 7 → Round up.
* Answer: $3.50
2. $3.14: Hundredths is 4 → Stay same.
* Answer: $3.10
3. $6.75: Hundredths is 5 → Round up.
* Answer: $6.80
4. $7.43: Hundredths is 3 → Stay same.
* Answer: $7.40
5. $8.28: Hundredths is 8 → Round up.
* Answer: $8.30
6. $8.67: Hundredths is 7 → Round up.
* Answer: $8.70
7. $4.97: Hundredths is 7 → Round up ($4.9 becomes $5.0).
* Answer: $5.00
8. $2.43: Hundredths is 3 → Stay same.
* Answer: $2.40
9. $6.46: Hundredths is 6 → Round up.
* Answer: $6.50
10. $8.17: Hundredths is 7 → Round up.
* Answer: $8.20
11. $8.05: Hundredths is 5 → Round up.
* Answer: $8.10
12. $3.67: Hundredths is 7 → Round up.
* Answer: $3.70
13. $1.92: Hundredths is 2 → Stay same.
* Answer: $1.90
14. $2.04: Hundredths is 4 → Stay same.
* Answer: $2.00
15. $3.57: Hundredths is 7 → Round up.
* Answer: $3.60
16. $2.37: Hundredths is 7 → Round up.
* Answer: $2.40
17. $11.48: Hundredths is 8 → Round up.
* Answer: $11.50
18. $25.04: Hundredths is 4 → Stay same.
* Answer: $25.00
19. $14.67: Hundredths is 7 → Round up.
* Answer: $14.70
20. $1.37: Hundredths is 7 → Round up.
* Answer: $1.40
---
Section 3: Round to the nearest meter
*Rule: Look at the first decimal digit (tenths). If it is 5 or more, round up the whole number. If less than 5, keep the whole number.*
1. 1.76 m: Tenths is 7 → Round up.
* Answer: 2 m
2. 4.32 m: Tenths is 3 → Stay same.
* Answer: 4 m
3. 6.75 m: Tenths is 7 → Round up.
* Answer: 7 m
4. 3.84 m: Tenths is 8 → Round up.
* Answer: 4 m
5. 7.82 m: Tenths is 8 → Round up.
* Answer: 8 m
6. 3.18 m: Tenths is 1 → Stay same.
* Answer: 3 m
7. 7.31 m: Tenths is 3 → Stay same.
* Answer: 7 m
8. 9.61 m: Tenths is 6 → Round up.
* Answer: 10 m
9. 5.42 m: Tenths is 4 → Stay same.
* Answer: 5 m
10. 12.95 m: Tenths is 9 → Round up.
* Answer: 13 m
11. 18.55 m: Tenths is 5 → Round up.
* Answer: 19 m
12. 14.56 m: Tenths is 5 → Round up.
* Answer: 15 m
13. 12.33 m: Tenths is 3 → Stay same.
* Answer: 12 m
14. 22.03 m: Tenths is 0 → Stay same.
* Answer: 22 m
15. 17.49 m: Tenths is 4 → Stay same.
* Answer: 17 m
16. 27.47 m: Tenths is 4 → Stay same.
* Answer: 27 m
17. 12.44 m: Tenths is 4 → Stay same.
* Answer: 12 m
18. 19.29 m: Tenths is 2 → Stay same.
* Answer: 19 m
19. 15.51 m: Tenths is 5 → Round up.
* Answer: 16 m
20. 27.47 m: Tenths is 4 → Stay same.
* Answer: 27 m
---
Section 4: Round to the nearest dollar or meter
*Rule: Look at the first decimal digit (tenths). 5 or more rounds up; less than 5 stays the same.*
1. $2.32: Tenths is 3 → Stay same.
* Answer: $2.00
2. $2.54: Tenths is 5 → Round up.
* Answer: $3.00
3. $4.56: Tenths is 5 → Round up.
* Answer: $5.00
4. $5.55: Tenths is 5 → Round up.
* Answer: $6.00
5. $12.32: Tenths is 3 → Stay same.
* Answer: $12.00
6. $16.99: Tenths is 9 → Round up.
* Answer: $17.00
7. $11.52: Tenths is 5 → Round up.
* Answer: $12.00
8. $19.50: Tenths is 5 → Round up.
* Answer: $20.00
9. $5.52: Tenths is 5 → Round up.
* Answer: $6.00
10. $61.62: Tenths is 6 → Round up.
* Answer: $62.00
11. $26.32: Tenths is 3 → Stay same.
* Answer: $26.00
12. $62.50: Tenths is 5 → Round up.
* Answer: $63.00
13. $44.42: Tenths is 4 → Stay same.
* Answer: $44.00
14. $63.32: Tenths is 3 → Stay same.
* Answer: $63.00
15. $89.15: Tenths is 1 → Stay same.
* Answer: $89.00
16. $16.50: Tenths is 5 → Round up.
* Answer: $17.00
17. $54.32: Tenths is 3 → Stay same.
* Answer: $54.00
18. $17.36: Tenths is 3 → Stay same.
* Answer: $17.00
Parent Tip: Review the logic above to help your child master the concept of rounding decimal numbers worksheet.
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