To simplify, you combine things that are the same kind — like adding up how many x's you have, or how many plain numbers. So this lesson runs on counting and combining equal groups and on quick addition. Warm those up first.
These are words you'll need to already know to follow this lesson — not the new words the lesson teaches. Review each one, its meaning, and the example so the new lesson makes sense from the start.
Level 1 To put numbers together to find how many in all.
Example: 2 + 3 = 5.
Level 1 To find how many of something you have.
Example: 2 cubes + 3 cubes is 5 cubes.
Level 1 Things that are the same type, so you can group them together.
Example: 3 apples + 2 apples = 5 apples, but apples and oranges are not the same kind.
Level 1 A set of things that go together.
Example: 2 boxes + 4 boxes makes one group of 6 boxes.
These check the skills you'll need for this lesson — not the new lesson itself. Answer all 3, then press Show my path. No grade — it just suggests where to start.
1. You have 2 apples and 3 more apples. How many apples?
2. 2 boxes plus 4 boxes is how many boxes?
3. Can you add 3 apples and 2 oranges into one number of the same fruit?
Vocabulary previewed and basics checked. Time to start the lesson.
Start Lesson 6-7 →