With rounding, you often get asked to find two values. These are the Upper Bound** (UB) **and the Lower Bound **(LB)** and when these 2 values are written in the form of **an inequality**, we refer to them as **ERROR INTERVALS**.

These two values can easily be worked out using a simple 3-step approach.

**Example 1** (accuracy = 1m)

**Example 2** (accuracy = 10cm)

**Example **3 (accuracy = 2 decimal places)

**Example **4 (accuracy = 2 significant figures)

**Example **5 (complex example)

**Points to consider before solving this problem…**

**Now we can work out the Maximum Speed**

With rounding, you often get asked to find two values. These are the Upper Bound

(UB)and the Lower Bound(LB)and when these 2 values are written in the form ofan inequality, we refer to them asERROR INTERVALS.These two values can easily be worked out using a simple 3-step approach.

Example 1(accuracy = 1m)Example 2(accuracy = 10cm)Example3 (accuracy = 2 decimal places)Example4 (accuracy = 2 significant figures)Example5 (complex example)Points to consider before solving this problem…Now we can work out the Maximum Speed## Nouri Dib