Ray's New Primary Arithmetic · Lesson IV · Unit 1: Counting and writing numbers
4. Numbers from 71 to 100
Goal: Your child reads and writes every number up to one hundred.
You'll need
- Bundles or cups of ten (ten of them)
- A slate, small whiteboard or paper and pencil
What's in the book
The number words from seventy-one to one hundred with their figures.
The lesson, step by step
Count by tens to 100
Lay out ten bundles of ten and count by tens to one hundred.
SayTen tens make one hundred. We write it 100: a one and two naughts.
Read the table
Read the new table together, then alone.
Tens and ones
Ask: How many tens in 85? How many ones? Then the other way: What number has 9 tens and 2 ones?
Write from dictation
Dictate six numbers between 71 and 100, then two older ones.
Afterwards
Count aloud from 1 to 100 over the next few days, a little each day.