1. Spelling, Writing and Reading Numbers

2. Warm-up activity
What is estimation?
What makes a good estimation?

3. How many cough drops come in the bag?
What’s an estimate that’s way too high?
What’s an estimate that’s way too low?
What’s an accurate estimate?
80 drops
ANSWER:

4. Writing Numbers Do your best to fill in the handout

5. Handout Answers

6. Reading Whole Numbers Ex: 123,456,789
1. Break the number into groups of 3 place values (start from right to left)
123 is millions, 456 is thousands and 789 is in standard place values
123-million, 456 – thousand, 789 (drop the standard)
2. Read/write it as:
one hundred twenty-three million four hundred fifty six thousand seven hundred eighty nine
Hundred millions
Ten millions
millions
Hundred thousands
Ten thousands
thousands
hundreds
tens
ones 1 2 3, 4 5 6, 7 8 9

7. Practice Complete the worksheets Check your answers when you’re done
Ask for help if you’re stuck 