- Show a 3-digit number in different ways, using concrete materials, pictures, words, and numbers.
- Compare and order 2-digit and 3-digit numbers.
- Skip count by 5s, 10s, and 100s forward and backward to 1000.
- Skip count by 3s, 4s, and 25s forward and backward to 1000.
- Estimate how many items are in a large collection by comparing it to a known quantity.
Here are some activities you can do at home to support this learning:
- Use play money to model numbers and to develop understanding of trading or grouping. For example, show that $342 can be modelled as $300 + $40 + $2. Using play bills for $1, $10, and $100 helps to reinforce place value.
- Play a number comparison game:
Remove the tens and face cards from a deck of regular playing cards. Deal 3 cards to each player.
Each player uses the cards to make the greatest possible 3-digit number. The person with the greater number gets a point. Repeat those steps. The first player to get 10 points is the winner.
Play the game again, this time making the least number possible.