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Estimate Addition by Rounding Underlined Digit to the Nearest 10 or 100: Worksheets, Online Test and Calculators

Estimate addition by rounding underlined digit to the nearest 10 or 100 worksheets, solved worksheet problems or exercises with step-by-step work, formative assessment as online test, calculator and more learning resources to learn, practice, assess and master the basic math skills of estimation.

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Estimate 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

  
 

Solved Worksheet Problems
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

Worksheet: Estimate Addition by Rounding Underlined Digit to the Nearest 10 or 100

Estimate addition by rounding underlined digit to the nearest 10 or 100 worksheet is the largest collection of practice problems and solved exercises which can be served as homework, classwork or assignment problems for the students to learn, practice, assess, iterate and master the skills of how to solve such estimation problems in basic mathematics.

Estimate the Sum Calculator

Addend 1
Addend 2
Actual Sum
5421 + 2357 =
7778
Sum by Estimation
5420 + 2360 =
7820

Work with steps - Estimate the Sum by Rounding

Question:
Estimate the sum
5421 + 2357 = ?
Answer:
5421 rounding to the nearest 10 is 5420
2357 rounding to the nearest 100 is 2400

Addition
5421
+  2357
sum
Estimated Sum
5420
+  2400
7820
Actual Sum
5421
+  2357
7778

Estimate the sum calculator is a key tool for users to generate step-by-step work to quickly understand the calculation, solve the homework problems, solve the classwork problems, prepare the answer key document for summative and formative assessments or immediately verify the entire calculation for the user supplied input values.