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Add More Than 2 Numbers
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 How to ADD more than 2 numbers using place value.
 That you can ADD more than 2 numbers using many strategies.
 How this knowledge can help us take care of Venus fly traps, create DIY projects, and eat chocolate rabbits!

Discussion Questions

Before VideoAdd 6 + 14. What strategy did you use to solve the problem?ANSWER

6 + 14 = 20. I made a ten by adding 6 + 4, then added another 10.

34 + 16 = 50. I broke 16 up in 10 and 6. 34 + 6 = 40. 40 + 10 = 50.

Break 21 into 2 tens and 1 one. Break 63 into 6 tens and 3 ones. Add the ones: 2 + 1 = 3. Add the tens: 6 + 3 = 9. So, the solution is 3 ones and 9 tens, which is 93.

Break 43 into 4 tens and 3 ones. Break 49 into 4 tens and 9 ones. Add the ones: 3 + 9 = 12. Add the tens: 4 + 4 = 8. This are 12 ones and 8 tens. Regroup 10 ones into 1 ten. The total is 2 ones and 9 tens, which is 92.

Break 315 into 3 hundreds, 1 ten, and 5 ones. Break 134 into 1 hundred, 3 tens, and 4 ones. Add the ones: 5 + 4 = 9. Add the tens: 1 + 3 = 4. Add the hundreds: 3 + 1 = 4. So, the solution is 4 hundreds, 4 tens, and 9 ones, which is 449.


After VideoAdd 6 + 5 + 7. What numbers did you add first?ANSWER

Add 6 + 5 = 11. Then, add the third number. 11 + 7 = 18. The sum is 18.

Add 15 + 5 first. 15 + 5 = 20. Then, add the other number. 20 + 47 = 67. The sum is 67.

First, add 13 + 7 and 19 + 21. I know that 13 + 7 = 20. Add 19 + 21 = 19 + 1 + 20 = 20 + 20 = 40. Then, add 20 + 40 = 60. The sum is 60.

I can start with any two numbers. I start with 14 + 13 = 27. Then, add in the next number. 27 + 21 = 48. Then, add the last number. 48 + 10 = 58.

I can start with any two numbers. I start with 212 + 214 = 426. Then, add in the third number. 426 + 330 = 756.



Vocabulary

Place Value
DEFINE
The value of a digit based on its position in a number.

Add
DEFINE
The process of putting parts together to find a new total.

Addend
DEFINE
A quantity being added.

Sum
DEFINE
The result of adding.

Breaking Apart Numbers
DEFINE
The process of taking a number and writing it as the sum of 2 or more parts. You could break apart a number by place value (ex. 43 = 40 + 3) or break apart a number to help you make a ten (ex. 12 = 8 + 4).

Make a Ten
DEFINE
To choose and add numbers that make a tens number, like 10, 20, or 30.

Place Value
DEFINE

Reading Material
Download as PDF Download PDF View as Separate PageWHAT IS ADDING MORE THAN 2 NUMBERS?You have already added 2 numbers together. Adding 3 or 4 numbers together is not much different at all!
To better understand adding more than 2 numbers…
WHAT IS ADDING MORE THAN 2 NUMBERS?. You have already added 2 numbers together. Adding 3 or 4 numbers together is not much different at all! To better understand adding more than 2 numbers…LET’S BREAK IT DOWN!
Add 3 numbers together.
To add 5 + 4 + 8, first add the first two numbers together. 5 + 4 = 9. Then add in the third number, 8. 9 + 8 = 17.
Add 3 numbers together. To add 5 + 4 + 8, first add the first two numbers together. 5 + 4 = 9. Then add in the third number, 8. 9 + 8 = 17.Add in a different order.
You can add those same numbers in a different order. 4 + 8 = 12. Then add the 5. 5 + 12 = 17. The answer is the same.
Add in a different order. You can add those same numbers in a different order. 4 + 8 = 12. Then add the 5. 5 + 12 = 17. The answer is the same.You can break apart numbers to add.
To add 11 + 18 + 50, break the numbers into tens and ones. 11 = 10 + 1 and 18 = 10 + 8.
Add the tens, then add the ones. 10 + 10 = 20. 1 + 8 = 9. The sum of the first two numbers is 20 + 9 = 29. Then add the 50. 29 + 50 = 79.You can break apart numbers to add. To add 11 + 18 + 50, break the numbers into tens and ones. 11 = 10 + 1 and 18 = 10 + 8. Add the tens, then add the ones. 10 + 10 = 20. 1 + 8 = 9. The sum of the first two numbers is 20 + 9 = 29. Then add the 50. 29 + 50 = 79.To add 3digit numbers, you can break numbers apart into hundreds, tens, and ones.
To add 3digit numbers, you can break numbers apart into hundreds, tens, and ones. Add 532 + 120 + 127. 532 = 500 + 30 + 2. 120 = 100 + 20. 127 = 100 + 20 + 7. Add the hundreds, tens, and ones separately, and then combine the place values. The sum is 700 + 70 + 9 = 779. 
Practice Word Problems

Practice Number Problems

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