How it works
Start at the cup's number. Count on, or count back.
3 under the cup and 1 more: say 3, then 4.
4 under the cup and 1 rolls out: say 4, then 3.
Worked examples
Count on
- There are 3 under the cup. 1 more goes in.
- Start at 3 and say the next: 4.
- 3 + 1 = 4.
Count back
- There are 4 under the cup. 1 rolls out.
- Start at 4 and say the one before: 3.
- 4 − 1 = 3.
Check
- Lift the cup and count.
- Touch each one once.
- See if you were right.
A taste of the worksheet
These are the first problems of set A. The printable sheet has many more, with an answer key.
- 2 balls under the cup. 1 more comes. How many in all? ___
- 3 under the cup. 1 more comes. How many in all?
- 2 under the cup. 2 more come. Are there 5 in all?
- 3 under the cup. 2 more come. How many in all? ___
- The cup is at 3. Hop on 2 more. Where do you land?
Words to know
- count on
- Say the next numbers to add.
- count back
- Say the numbers going down to take away.