This document discusses converting between metric units of measurement. It provides examples of using liters for capacity, meters for length, and grams for mass. It then presents a chart of common metric units and their abbreviations. Examples are given for converting between decimeters and centimeters, as well as dekaliters and liters. Key strategies discussed are remembering BLU (Big Little Up) and LBD (Little Big Down) to know whether numbers increase or decrease when converting between larger and smaller units.

1. My Math Project
Converting Metric Units to Solve
Word Problems

2. We use different units for
different things.

3. For Example:
For petrol we measure it in litres
(l) and it goes in the ‘capacity’
category.

4. If we want to measure how wide
the road is, we would use metres
(m). NOT MILLIMETRES!
It’s too tiny.

5. If I want to weigh how heavy a
this book is, what unit of
measurement would I use?
Which category would it go in?
Capacity/mass/length?

6. For a book we use grams (g).
It is in the ‘mass’ category.

7. Now Let’s Do Some
Converting

8. Metric Units Of Measurement Chart

9. Questions

10. Julie has 17.5 dm (decimetres) of
ribbon. For dancing she only
needs 69 cm of ribbon, so she
cuts 69 cm off. How many
centimetres of ribbon does she
have left?

11. HOW?
1a. Convert the decimetres to centimetres.
To do this multiply 17.5 by 10.
Move the digits one place value forward.
17.5 to
175cm
1b. Another way of doing it is to move the decimal
place one space to the right, because you want to
multiply it by 10.
17.5
175 cm

12. Just to make sure:
*Remember BLU & LBD.

13. LBD
Little Big Down
When you convert little units to big units the
number goes down. For example: convert
23500m to km =23.5km. Same goes with
other conversions such as : kg-Mg, mm-
cm, hl-dal…

14. BLU
Big Little Up
When you convert big units to small ones –
as in km – m, m-cm, dm-cm, Mg-hg,
dal (dekalitre)- ml..- the number goes up.
Just like when we converted 17.5dm to cm.
We got 175cm, the number went up.

15. Step 2
2. Remember that Julie cuts off 69cm.
So you simply subtract 69cm off
175cm.
175
- 69
-------
106cm.
Yes you got it!
The answer is 106cm.

16. Now Try These!

17. Miss. Rasborn had 4.7dal (dekalitres) of tea in her super-
sized cup. She drank 6 litres. How much does she have
left?
Remember that 10l=1 dl
2. A house weighs 6.77 Mg (megagrams). How
much does it weigh in hg (hectograms)?
Remember that 1 Mg = 10000hg

18. Answers

19. 1. 46 litres
2. 67700 hectograms
Did you get it right?

20. Thank you for watching!