I would use 40 for the 38 and 50 for the 51.
90 would be my estimate.
If I had to, I would use 20 and 70.
5.6261
3.8667
416, is 832 divided by two, so, adding 416 and 416 together would give it to you, or if you can't use the same numbers, 417 and 415 would work.
11
17 and 4: sum is 21.
you can use whole numbers
You could use 250 and 750.
If I had to, I would use 20 and 70.
When working with very large numbers or very small numbers and they would use a system of numeracy known as scientific notation.
20 and 80 based on conventional rules. 20 and 70 to be more accurate.
5.6261
50.0000.000
Hm well you can use whole numbers. Now my boy do you get it? Get that brain working!
the answer is yes because you can estimate any numbers
By adding 5+1 to get the sum of six.
You use the relevant formula.