Could you please check ifI have these right?

i need to estimate using benchmarks
(show work)

1/8 + 3/5
i got:
0 + 1/2 = 1/2
_________________

4 3/4 - 1 2/3
i got:

4 +1 = 5 - 1 +1 = 2
so 5 - 2 = 3
_____________________

43 7/8 divide 10 1/3
43 + 1 = 44 10 +0 = 10
so 44 divide by 10 = 4.4

________________________
2 5/6 * 6 1/0
i got:
3 * 6 = 18
______________________

4/4 + 1/2
igot: 1 + 1/2 = 1 1/2

those estimates look ok.

Maybe 44/10 should just be 4.

To estimate using benchmarks, you can round the given fractions to whole numbers and then perform the required operations. Let's go through each of your calculations to see if they are correct:

1/8 + 3/5:
To estimate this sum, we can round 1/8 to 0 and 3/5 to 1/2.
So, 0 + 1/2 = 1/2. Your answer is correct.

4 3/4 - 1 2/3:
To estimate this difference, we can round 4 3/4 to 5 and 1 2/3 to 2.
So, 5 - 2 = 3. Your answer is correct.

43 7/8 ÷ 10 1/3:
To estimate this division, we can round 43 7/8 to 44 and 10 1/3 to 10.
So, 44 ÷ 10 = 4.4. Your answer is correct.

2 5/6 × 6 1/10:
To estimate this multiplication, we can round 2 5/6 to 3 and 6 1/10 to 6.
So, 3 × 6 = 18. Your answer is correct.

4/4 + 1/2:
To estimate this sum, we can simplify 4/4 to 1 and keep 1/2 as it is.
So, 1 + 1/2 = 1 1/2. Your answer is correct.

Overall, your calculations using benchmarks are correct. Keep in mind that rounding to the nearest whole number may result in a slight error, but it is a good estimation technique.