Two-Digit Addition Using Expanded Notation to Add

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Presentation transcript:

Two-Digit Addition Using Expanded Notation to Add Super Strategies Two-Digit Addition Using Expanded Notation to Add Krista Titchener- Fisher Elementary

You can add two-digit numbers by using expanded notation! 25 +37= ___ Go to the next page to see how to solve it using expanded notation!

Break the numbers up in tens and ones using expanded notation Break the numbers up in tens and ones using expanded notation . 25 + 37 is the same as…. 20 + 5 30 + 7 1. Add the tens 2. Then add the ones 3. Now add both numbers together! 50 12 + = 62

Now it’s your turn to try it! Get your dry erase boards ready. Here we go!

Write this number sentence at the top of your dry erase board: 44 +26= ___ Go to the next page to see how to solve it using expanded notation!

Break the numbers up in tens and ones using expanded notation Break the numbers up in tens and ones using expanded notation . 44 + 26 is the same as…. 40 + 4 20 + 6 1. Add the tens 2. Then add the ones 3. Now add both numbers together! 60 10 + = 70

Go to the next page to see how to solve it using expanded notation! Let’s try another one! Write this number sentence at the top of your dry erase board: 16 +78= ___ Go to the next page to see how to solve it using expanded notation!

Break the numbers up in tens and ones using expanded notation Break the numbers up in tens and ones using expanded notation . 16 + 78 is the same as…. 10 + 6 70 + 8 1. Add the tens 2. Then add the ones 3. Now add both numbers together! 80 14 + = 94

Go to the next page to see how to solve it using expanded notation! Let’s try another one! Write this number sentence at the top of your dry erase board: 63 +19= ___ Go to the next page to see how to solve it using expanded notation!

Break the numbers up in tens and ones using expanded notation Break the numbers up in tens and ones using expanded notation . 63 + 19 is the same as…. 60 + 3 10 + 9 1. Add the tens 2. Then add the ones 3. Now add both numbers together! 70 12 + = 82

Go to the next page to see how to solve it using expanded notation! Let’s try another one! Write this number sentence at the top of your dry erase board: 17 +18= ___ Go to the next page to see how to solve it using expanded notation!

Break the numbers up in tens and ones using expanded notation Break the numbers up in tens and ones using expanded notation . 17 + 18 is the same as…. 10 + 7 10 + 8 1. Add the tens 2. Then add the ones 3. Now add both numbers together! 20 15 + = 35

Go to the next page to see how to solve it using expanded notation! Let’s try another one! Write this number sentence at the top of your dry erase board: 62 +29= ___ Go to the next page to see how to solve it using expanded notation!

Break the numbers up in tens and ones using expanded notation Break the numbers up in tens and ones using expanded notation . 62 + 29 is the same as…. 60 + 2 20 + 9 1. Add the tens 2. Then add the ones 3. Now add both numbers together! 80 11 + = 91

Go to the next page to see how to solve it using expanded notation! Let’s try another one! Write this number sentence at the top of your dry erase board: 48 +33= ___ Go to the next page to see how to solve it using expanded notation!

Break the numbers up in tens and ones using expanded notation Break the numbers up in tens and ones using expanded notation . 48 + 33 is the same as…. 40 + 8 30 + 3 1. Add the tens 2. Then add the ones 3. Now add both numbers together! 70 11 + = 81

You did a great job! Way to go!