Videos, examples, and solutions to help Grade 2 students learn to add up to four two-digit numbers using strategies based on place value and properties of operations.

Common Core: 2.NBT.6

### Suggested Learning Target

- I can add up to four two-digit numbers by applying strategies (e.g., decomposing numbers, rearranging the order of the numbers, making tens or multiples of tens based on the numbers being added).
- I know how to apply strategies such as expanded form, empty number line and partial sums

**[2.NBT.6] Add 4 Numbers - Common Core Standard**
How to add up to four two-digit numbers using strategies based on place value and properties of operations?

Example:

What's the total of these four numbers?

18 + 29 + 36 + 17

**Add three two-digit numbers within 100 where the ones add to below 10**
Example:

What's the total of these three numbers?

43 + 24 + 22

**Add three two-digit numbers**
Add three two-digit numbers within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

Example:

What's the total of these three numbers?

30 + 16 + 37

**Add four two-digit numbers**
Add four two-digit numbers within 100 where the ones add to below 10.

Example:

What's the total of these four numbers?

23 + 13 + 40 + 13

**Adding Four 2-digit numbers**
**Add 3 Numbers - Common Core Standard - Word Problem**
Example:

I had 29 gumballs to start with. Last week, I got another 26 gumballs, and next week I'll get 9 more. How many gumballs will I have in total next week?

**Add 4 Numbers - Common Core Standard - Word Problem**
Example:

I had $23 saved to start with. Last week, I saved $20, and this week I saved another $12. If I get $31 next week, how much will I have saved in total?

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