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TWO DIGIT ADDITION ( with regrouping)
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In this lesson you will learn to add two-digit numbers... Look at the following addition:
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2 7 + 3 5 ------- 2 7 + 3 5 -------
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1 2 7 + 3 5 ------- 1 2 7 + 3 5 ------- 2
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6 2 6 2 6 2 6 2
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Very good, now try to do this addition:
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5 8 + 2 5 ------- 5 8 + 2 5 -------
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1 5 8 + 2 5 ------- 1 5 8 + 2 5 ------- 3
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8 3 8 3
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Now, let’s look at another example: Now, let’s look at another example:
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7 9 + 1 1 ------- 7 9 + 1 1 -------
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1 7 9 + 1 1 ------- 1 7 9 + 1 1 ------- 0
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9 0 9 0
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Now you try it: Now you try it:
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1. 1 9 2. 4 8 + 2 5 + 3 7 ----- ------
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1. 1 1 9 2. 4 8 + 2 5 + 3 7 ----- ------ 4
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4 4 4 4
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1. 1 1 1 9 2. 4 8 + 2 5 + 3 7 ----- ------ 4 4 5 4 4 5
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1. 1 1 1 9 2. 4 8 + 2 5 + 3 7 ----- ------ 4 4 8 5 4 4 8 5
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3. 3 3 4. 4 9 + 5 9 + 1 6 ----- ------
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3. 1 3 3 4. 4 9 + 5 9 + 1 6 ----- ------ 2
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9 2 9 2
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3. 1 1 3 3 4. 4 9 + 5 9 + 1 6 ----- ------ 9 2 5 9 2 5
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3. 1 1 3 3 4. 4 9 + 5 9 + 1 6 ----- ------ 9 2 6 5 9 2 6 5
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5. 3 7 6. 7 8 + 2 3 + 1 8 ------- ------- 7. 2 5 8. 3 8 + 3 6 + 5 4 ------- ------ 5. 3 7 6. 7 8 + 2 3 + 1 8 ------- ------- 7. 2 5 8. 3 8 + 3 6 + 5 4 ------- ------
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1 5. 3 7 6. 7 8 + 2 3 + 1 8 ------- ------- 0 1 5. 3 7 6. 7 8 + 2 3 + 1 8 ------- ------- 0
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1 5. 3 7 6. 7 8 + 2 3 + 1 8 ------- ------- 6 0 1 5. 3 7 6. 7 8 + 2 3 + 1 8 ------- ------- 6 0
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1 1 5. 3 7 6. 7 8 + 2 3 + 1 8 ------- ------- 6 0 6 1 1 5. 3 7 6. 7 8 + 2 3 + 1 8 ------- ------- 6 0 6
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1 1 5. 3 7 6. 7 8 + 2 3 + 1 8 ------- ------- 6 0 9 6 1 1 5. 3 7 6. 7 8 + 2 3 + 1 8 ------- ------- 6 0 9 6
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1 7. 2 5 8. 3 8 + 3 6 + 5 4 ------- ------- 1 1 7. 2 5 8. 3 8 + 3 6 + 5 4 ------- ------- 1
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1 7. 2 5 8. 3 8 + 3 6 + 5 4 ------- ------- 6 1 1 7. 2 5 8. 3 8 + 3 6 + 5 4 ------- ------- 6 1
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1 1 7. 2 5 8. 3 8 + 3 6 + 5 4 ------- ------- 6 1 2 1 1 7. 2 5 8. 3 8 + 3 6 + 5 4 ------- ------- 6 1 2
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1 1 7. 2 5 8. 3 8 + 3 6 + 5 4 ------- ------- 6 1 9 2 1 1 7. 2 5 8. 3 8 + 3 6 + 5 4 ------- ------- 6 1 9 2
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INTERNET GAME #1 INTERNET GAME #1 INTERNET GAME #2 GAME #2
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THE END
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