Adding 3 Double Digit Numbers
Presentation
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Mathematics
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2nd - 3rd Grade
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Practice Problem
•
Easy
+1
Standards-aligned
La'teisha Lynum
Used 45+ times
FREE Resource
10 Slides • 6 Questions
1
Adding 3 Double Digit Numbers
Using Addition Strategies
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3
Solve the problem.
First, look for a "Friend of 10" or "Double" in the ones place.
4
Solve the problem.
There's a friend of 10! Now add the digit that's left over (8) to 10!
5
Solve the problem.
Write the sum of the ones, don't forget to regroup! Now, look for a "friend of 10" or "doubles" in the tens place!
6
Solve the problem.
There are two "Friends of Ten"! Add them together! Regroup and make a space for hundreds, if you need to!
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Open Ended
8
208 is the final answer!
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Poll
10
Copy and solve this in your Math notebook.
You will type your answer on the next screen! (1 minute)
11
Fill in the Blank
12
Copy and solve this in your Math notebook.
You will type your answer on the next screen! (1 minute)
13
Fill in the Blank
14
Last One! Copy and solve this in your Math notebook.
You will type your answer on the next screen! (1 minute)
15
Fill in the Blank
16
Poll
Adding 3 Double Digit Numbers
Using Addition Strategies
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