Upper and Lower Bounds
Question 1:
When x = 6800 (2 s.f.) and
y = 24 (2 s.f.), find the lower bound of x + y
6773.5
Question 2:
When x = 1.811 (3 d.p.) and
y = 0.054 (3 d.p.), find the upper bound of x - y
1.758
Question 3:
When x = 0.4 (1 d.p.) and
y = 0.95 (2 d.p.), find the lower bound of x × y
0.33075
Question 4:
When x = 16.4 (1 d.p.) and
y = 0.715 (3 d.p.), find the lower bound of x ÷ y
22.851153039832