# 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.

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

Name
Date

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

Actual Sum

2
7715
1102
sum
Estimated Sum

Actual Sum

3
2916
2602
sum
Estimated Sum

Actual Sum

4
5740
3532
sum
Estimated Sum

Actual Sum

5
7786
1406
sum
Estimated Sum

Actual Sum

6
6849
1141
sum
Estimated Sum

Actual Sum

7
7989
4404
sum
Estimated Sum

Actual Sum

8
8415
8115
sum
Estimated Sum

Actual Sum

9
5669
5227
sum
Estimated Sum

Actual Sum

10
1999
1063
sum
Estimated Sum

Actual Sum

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

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 = ?
5421 rounding to the nearest 10 is 5420
2357 rounding to the nearest 100 is 2400