I'll work through each section carefully, checking my calculations step by step.
Section A: Round to the nearest 10, 100, or 1000
For rounding to the nearest 10: Look at the ones digit. If it's 5 or more, round up. If less than 5, round down.
For rounding to the nearest 100: Look at the tens digit. If it's 5 or more, round up. If less than 5, round down.
For rounding to the nearest 1000: Look at the hundreds digit. If it's 5 or more, round up. If less than 5, round down.
1) 35 (to 10): Ones digit is 5, so round up → 40
2) 14 (to 10): Ones digit is 4, so round down → 10
3) 521 (to 10): Ones digit is 1, so round down → 520
4) 4,108 (to 10): Ones digit is 8, so round up → 4,110
5) 197 (to 10): Ones digit is 7, so round up → 200
6) 715 (to 100): Tens digit is 1, so round down → 700
7) 962 (to 100): Tens digit is 6, so round up → 1,000
8) 1,841 (to 100): Tens digit is 4, so round down → 1,800
9) 2,977 (to 1,000): Hundreds digit is 9, so round up → 3,000
10) 18,814 (to 1,000): Hundreds digit is 8, so round up → 19,000
Section B: Round to the nearest whole number
Look at the tenths digit (first decimal place). If it's 5 or more, round up. If less than 5, round down.
1) 0.6: Tenths digit is 6, so round up → 1
2) 0.19: Tenths digit is 1, so round down → 0
3) 1.7: Tenths digit is 7, so round up → 2
4) 5.3: Tenths digit is 3, so round down → 5
5) 4.81: Tenths digit is 8, so round up → 5
6) 0.219: Tenths digit is 2, so round down → 0
7) 18.086: Tenths digit is 0, so round down → 18
8) 299.5: Tenths digit is 5, so round up → 300
9) 783.444: Tenths digit is 4, so round down → 783
10) 999.55123: Tenths digit is 5, so round up → 1,000
Section C: Round to the indicated decimal place
For tenths: Look at the hundredths digit (second decimal place)
For hundredths: Look at the thousandths digit (third decimal place)
For thousandths: Look at the ten-thousandths digit (fourth decimal place)
1) 2.16 (tenth): Hundredths digit is 6, so round up → 2.2
2) 5.08 (tenth): Hundredths digit is 8, so round up → 5.1
3) 850.05 (tenth): Hundredths digit is 5, so round up → 850.1
4) 3.4729 (tenth): Hundredths digit is 7, so round up → 3.5
5) 6.9811 (tenth): Hundredths digit is 8, so round up → 7.0
6) 7.418 (hundredth): Thousandths digit is 8, so round up → 7.42
7) 11.164 (hundredth): Thousandths digit is 4, so round down → 11.16
8) 0.85512 (hundredth): Thousandths digit is 5, so round up → 0.86
9) 42.9966 (hundredth): Thousandths digit is 6, so round up → 43.00
10) 4.12059 (thousandth): Ten-thousandths digit is 5, so round up → 4.121
Final Answer:
Section A:
1) 40
2) 10
3) 520
4) 4,110
5) 200
6) 700
7) 1,000
8) 1,800
9) 3,000
10) 19,000
Section B:
1) 1
2) 0
3) 2
4) 5
5) 5
6) 0
7) 18
8) 300
9) 783
10) 1,000
Section C:
1) 2.2
2) 5.1
3) 850.1
4) 3.5
5) 7.0
6) 7.42
7) 11.16
8) 0.86
9) 43.00
10) 4.121
Parent Tip: Review the logic above to help your child master the concept of rounding off fractions worksheet.
