If you explain negative numbers, the numbers will always have a 'th' at the end!

Learning intention: We are learning to develop our number knowledge.
Success criteria: I know I can do this when I explain that 50 in 100.50 is a tenth or 'deci' in prefixes.

Do you know what 'pico' in metric numbers stand for?

Learning intention: We are learning to understand metric numbers.
Success criteria: I know I can do this when explain that 50 in 100.50 is a tenth or 'deci' in prefixes.