If the value of x is -ve, then, there resultant value must be positive
10-(-x) = 10+x
Answer:
it would be 5
Step-by-step explanation:
Answer: A.
Step-by-step explanation:
Round to the nearest tens. 52 = 50 and 39 = 40
50 + 40 = 90 Simply add and that is the estimate of the sum 52 + 39