Estimate each sum and find the actual sum of 4.007+3.726​

7.733

Step-by-step explanation:

4.007

+

3.727

=7.733

1.

--->4,000

--->4,000

ans; 8,000

2.

--->9,000

--->2,000

11,000

3.

--->10,000

---> 4,000

14,000

4.^~^

5.^~^

There are 2 ways of doing it, Rounding the numbers to the greatest place value then adding it and Adding the Numbers and rounding it to the greatest place value.

(I prefer rounding it up first to make it easier although it only works on 1 decimal)

7.4 + 8.9 = 16.3 = 16  or;

7 + 9 = 16

4.56 + 3.49 = 8.05 = 8