1. Math 801A: Mathematical Operations – Denominate Numbers
Mathematics Essentials
March 13th, 2017

2. Lesson Introduction Today I will...
add and subtract denominate numbers
multiply and divide denominate numbers
convert between measurements mentally when appropriate

3. Denominate Numbers
Numbers that are written in association with a unit of measure.
E.g. 7’3”, the 7’ and 3” are denominate numbers as they are associated with feet and inches, respectively.

4. Adding Denominate Numbers
1 yard = 3 feet OR the distance travelled in one step
1 foot = 12 inches
Perimeter (P) = sum of all sides

5. Adding Denominate Numbers
Try the activity (questions #1-4) on page 47.

6. Subtracting Denominate Numbers
Similar to subtracting whole numbers or decimals
Regrouping requires you to remember the link between the different units of measure.
Step 1: align numbers according to common units of measure
Step 2: subtract (regroup if necessary)

7. Subtracting Denominate Numbers
Practice question 8 on page 48.
When done: work on Pg 49, #10 A, C, E, G, I, K, M, O, Q – this is part of your Denominate Numbers Assignment.

8. Multiplying Denominate Numbers
Multiply by a whole number, using the standard method for multiplication
Regroup numbers based on units if possible
Practice #11 on page 50.

9. Dividing Denominate Numbers
Two methods you can use:
Method 1: divide regularly until you get to a new unit, regroup, continue
Method 2: regroup measurement to the smallest unit and then divide as you normally would
Practice #14 on page 51.

10. Homework! Denominate Numbers Assignment due Wednesday:
Pg 49, #10 A, C, E, G, I, K, M, O, Q
Pg 52, #15 A, C, E, G, I, K, M