Small numbers, smart moves
Build confident addition and subtraction within five.
Explore this lesson →8 practice questions · Optional read aloud · Thinking pad
Let’s understand the idea.
- Look for an amount you already know. You may be able to see it without counting each counter.
- Use a known fact to work out a related one: if 2 and 3 make 5, then 5 take away 3 leaves 2.
- Explain your strategy. Practice can make it easier and more flexible; this is not a race.
Something to notice
Observe accurate, flexible and increasingly effortless addition/subtraction within five across fresh examples. Finishing this question set alone does not establish fluency.
Try it. Change it. Explain it.
Open the lesson to use its pictures and controls. In How it works, connect the picture to the idea. In Play & discover, change the quantities and notice what stays the same. In Your turn, answer questions and use the explanation to check your reasoning.
You can ask for help, draw on the thinking pad, or listen to the question and answer options. Progress distinguishes independent work from work completed with help.
Let’s try it →Curriculum connection
Kindergarten · K.OA · US Common Core
This lesson is mapped to these standards. A completed activity is practice evidence, not a claim of mastery. Content is checked against the linked official standards and its mathematical models are tested.