Brainliest! 1. estimate the sum or difference. use the benchmarks 0, 1/2 and 1

a. 0

b. 1/2

c. 1

2. tom walked 1/5 of a mile on monday and 6/7 of a mile on tuesday. how far did he walk in all?

a. about 1/2 mile

b. about 1 mile

c. about 1 1/2 miles

d. about 2 miles.

3. tom read for 7/8 of an hour on monday and 2/8 of an hour on tuesday. how much longer did he read on monday than tuesday?

a. 1/2

b. 5/8

c. 3/4

d. 1 1/8

A) The sum or difference of the numbers is , option B

B)  The total distance cover by Tom is 1 miles

C)  The longer duration of Tom on Monday than Tuesday is hours , option B              

Step-by-step explanation:

Given as :

A) The given benchmarks as 0 , , 1

From the given number , the mid number is  

So, The sum of the number = 0 +  

I,e The sum of the number =  

And The difference of number = 1 -  

Or, The difference of number =  

Or, The difference of number =

Hence The sum or difference of the numbers is  Answer

B) The distance cover by Tom on Monday = miles

The distance cover by Tom on Tuesday = miles

So, The total distance cover = The distance cover on Monday + The distance cover on Tuesday

I.e  The total distance cover =   miles +   miles

Now, taking LCM

Or, The total distance cover =   miles

Or, The total distance cover =   miles

I.e The total distance cover =  1 miles

Hence The total distance cover by Tom is 1 miles Answer

C) The time period of Tom reading on Monday = hours

The time period of Tom reading on Tuesday = hours

The longer duration of Tom on Monday than Tuesday = x hours

So, x =   The time period of Tom reading on Monday -  The time period of Tom reading on Tuesday

I.e x = hours - hours

∴ x = hours

I,e x = hours

So, The longer duration of Tom on Monday than Tuesday = x =   hours

Hence  The longer duration of Tom on Monday than Tuesday is hours   . option B  Answer