Ch 1 · Lesson 33

Number house two: dek and the teens

is ten, and the teens are just plus a digit, written as two words: is eleven, nineteen. No thirteen-style words to learn. asks how many.

Practise this lesson

3-word session

A quick mix of exercises - recognise, recall, type and build each word. Miss one and it comes back round until it sticks.

What do the colours mean?