We remembered to make sure the start of the scale was at the start of the object!
We used maths language to describe how much water we had, "I have more than a litre"...."This container holds less than a litre".
We measured certain amounts and checked that the water reached the correct mark on the scale.
Finding a missing number (part 2!)
Using a 100 square.
Remember the number that is your start position.
THEN count on........
...is 1 more than...
How many more are there?
How many boys are there?
How many girls are there?
How many MORE girls are there?