I hope this helps you
2.40-1.35
1.05
1 hour 5 minutes
Answer:
-3
Step-by-step explanation:
10 minus 13 is negative 3.
Answer: a) -2,1 , 0,1 , 2,1
b) C
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
It's simple really you take the x axis and subtract it by the answer
4 3/5 ≈ 5
1 1/5 ≈ 1
(4 3/5) +(1 1/5)
≈ 5 +1
≈ 6 . . . . . . . . . . . the estimated sum rounded to whole numbers
_____
Additional information:
As a refinement to your estimate, you can estimate the error. The first number is 2/5 less than 5. The second number is 1/5 more than 1, so the errors add up to
.. (2/5) +(-1/5) = 1/5
That is, your "estimate" of 6 is actually too high by 1/5. You can refine that estimated value by subtracting 1/5. 5 4/5 would be a closer "estimate."