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Estimating Sums. 5 7 + 3 1. Actual answer. 5 7 5 7 + 3 1 + 3 1 8 8. Estimated answer. 5 7 6 0 + 3 1 +3 0 9 0. Your Turn! . Actual answer. 6 8 + 2 4. Estimated answer. 6 8 + 2 4 +_____ 9 2. Estimated answer. 6 8 7 0

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5 7

+ 3 1


Actual answer
Actual answer

5 7 5 7

+ 3 1+ 3 1

8 8


Estimated answer
Estimated answer

5 7 6 0

+ 3 1 +3 0

9 0



Actual answer1
Actual answer

6 8

+ 2 4


Estimated answer1
Estimated answer

6 8

+ 2 4+_____

9 2


Estimated answer2
Estimated answer

6 8 7 0

+ 2 4+ 2 0_

9 2 9 0


Actual answer2
Actual answer

367

+ 456


Estimated answer3
Estimated answer

367

+ 456+_____

823


Estimated answer4
Estimated answer

367 400

+ 456+_500

823900


Actual answer3
Actual answer

897

+ 412


Estimated answer5
Estimated answer

897

+ 412+_____

1309


Estimated answer6
Estimated answer

897 900

+ 412+_ 400

1309 1300


Actual answer4
Actual answer

635

+ 342


Estimated answer7
Estimated answer

635

+ 342+_____

977


Estimated answer8
Estimated answer

635 600

+ 342+_300

977900


Actual answer5
Actual answer

3,269

+ 1,629


Estimated answer9
Estimated answer

3,269

+1,629 + _______

4,898


Estimated answer10
Estimated answer

3,269 3,000

+1,629+2,000

4,898 5,000


Actual answer6
Actual answer

4,092

+ 2,808


Estimated answer11
Estimated answer

4,092

+2,808+_____

6,900


Estimated answer12
Estimated answer

4,092 4,000

+2,808+ 3,000

6,900 7,000



5 6 3 9
5 6+ 3 9


5 6 3 9 9 5
5 6+ 3 9 9 5


2 4 6 9
2 4 + 6 9


2 4 6 9 9 3
2 4 + 6 9 9 3


4 5 6 2 4 5
4 5 6+2 4 5


4 5 6 2 4 5 7 0 1
4 5 6+ 2 4 5 7 0 1


1 9 8 7 0 9
1 9 8 + 7 0 9


1 9 8 7 0 9 9 0 7
1 9 8 + 7 0 9 9 0 7


5 2 9 0 3 5 7 9
5, 2 9 0 + 3, 5 7 9


5 2 9 0 3 5 7 9 8 8 6 9
5, 2 9 0 + 3, 5 7 9 8, 8 6 9


3 8 1 5 6 2 9 9
3, 8 1 5 + 6, 2 9 9


3 8 1 5 6 2 9 9 1 0 1 1 4
3, 8 1 5 + 6, 2 9 9 1 0, 1 1 4


7 4 3 8 4 2 8 9
7, 4 3 8 + 4, 2 8 9


7 4 3 8 4 2 8 9 1 1 7 2 7
7, 4 3 8 + 4, 2 8 9 1 1, 7 2 7



5 6 3 91
5 6+ 3 9


6 0 4 0 1 0 0
6 0+ 4 01 0 0


2 4 6 91
2 4 + 6 9


2 0 7 0 9 0
2 0 + 7 0 9 0


4 5 6 2 4 51
4 5 6+ 2 4 5


5 0 0 2 0 0 7 0 0
5 0 0+ 2 0 0 7 0 0


1 9 8 7 0 91
1 9 8 + 7 0 9


2 0 0 7 0 0 9 0 0
2 0 0 + 7 0 0 9 0 0


5 2 9 0 3 5 7 91
5, 2 9 0 + 3, 5 7 9


5 0 0 0 4 0 0 0 9 0 0 0
5, 0 0 0 + 4, 0 0 0 9, 0 0 0


3 8 1 5 6 2 9 91
3, 8 1 5 + 6, 2 9 9


4 0 0 0 6 0 0 0 1 0 0 0 0
4, 0 0 0+ 6, 0 0 0 1 0, 0 0 0


7 6 3 8 4 2 8 9
7, 6 3 8 + 4, 2 8 9


8 0 0 0 4 0 0 0 1 2 0 0 0
8, 0 0 0 + 4, 0 0 0 1 2, 0 0 0


Well it s about time you got the hang of it now let s make some a s
Well, it’s about time you got the hang of it! Now, let’s make some A’s!!!


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