Addition by Rounding Underlined Digit to the Nearest 10 or 100

Name Grade School
Date Questions10 Score

example
Addition
1424
 3334
sum
Estimated Sum
1420
 3300
4720
Actual Sum
1424
 3334
4758
1
Addition
4853
 3833
sum
Estimated Sum

  
 
Actual Sum

  
 
2
Addition
7715
 1102
sum
Estimated Sum

  
 
Actual Sum

  
 
3
Addition
2916
 2602
sum
Estimated Sum

  
 
Actual Sum

  
 
4
Addition
5740
 3532
sum
Estimated Sum

  
 
Actual Sum

  
 
5
Addition
7786
 1406
sum
Estimated Sum

  
 
Actual Sum

  
 
6
Addition
6849
 1141
sum
Estimated Sum

  
 
Actual Sum

  
 
7
Addition
7989
 4404
sum
Estimated Sum

  
 
Actual Sum

  
 
8
Addition
8415
 8115
sum
Estimated Sum

  
 
Actual Sum

  
 
9
Addition
5669
 5227
sum
Estimated Sum

  
 
Actual Sum

  
 
10
Addition
1999
 1063
sum
Estimated Sum

  
 
Actual Sum

  
 

Answers Key
1
Addition
4853
 3833
sum
Estimated Sum
4850
 3800
8650
Actual Sum
4853
 3833
8686
2
Addition
7715
 1102
sum
Estimated Sum
7720
 1100
8820
Actual Sum
7715
 1102
8817
3
Addition
2916
 2602
sum
Estimated Sum
2920
 2600
5520
Actual Sum
2916
 2602
5518
4
Addition
5740
 3532
sum
Estimated Sum
5740
 3500
9240
Actual Sum
5740
 3532
9272
5
Addition
7786
 1406
sum
Estimated Sum
7790
 1400
9190
Actual Sum
7786
 1406
9192
6
Addition
6849
 1141
sum
Estimated Sum
6800
 1140
7940
Actual Sum
6849
 1141
7990
7
Addition
7989
 4404
sum
Estimated Sum
7990
 4400
12390
Actual Sum
7989
 4404
12393
8
Addition
8415
 8115
sum
Estimated Sum
8420
 8100
16520
Actual Sum
8415
 8115
16530
9
Addition
5669
 5227
sum
Estimated Sum
5670
 5200
10870
Actual Sum
5669
 5227
10896
10
Addition
1999
 1063
sum
Estimated Sum
2000
 1100
3100
Actual Sum
1999
 1063
3062

Addition by Rounding to the Place Value of Underlined Digit Worksheet

Addition by rounding underlined digit to nearest ten or hundred worksheet with answers to practice & learn 4th grade math problems on estimation is available online for free in printable & downloadable (pdf & image) format. Tap on PRINT, PDF or IMAGE button to print or download this grade-4 worksheet for estimated addition by rounding to the place value of underlined digit.

How to Use this Worksheet

In this fourth grade math worksheet, students are required to find the estimated sum by rounding to the place value of underlined digit of a 4-digit number (rounding marked digit to the nearest 10 or 100) as like in the given solved example of this online workbook for estimation problems.

To round the underlined digit to the nearest 10, increase or decrease to the next TEN or earlier TEN, if the value of Ones digit of the given 4-digit number is greater than or equal to 5, or less than 5 respectively.

To round the underlined digit to the nearest 100, increase or decrease to the next HUNDRED or earlier HUNDRED, if the value of combination of Tens & Ones digit of the given 4-digit number is greater than or equal to 50, or less than 50 respectively.

Answers Key

Teachers, tutors, parents or students can check or validate the completed math workbook containing the set of 4th grade math questions for practice estimate addition by rounding underlined digit to the nearest ten or hundred by using the corresponding answers key.

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