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Published byDouglas Swindle Modified over 2 years ago

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Number Bonds to 20 19 + 1 = 20 18 + 2 = 20 17 + 3 = 20 16 + 4 = 20 15 + 5 = 20 14 + 6 = 20 13 + 7 = 20 12 + 8 = 20 11 + 9 = 20 10 + 10 = 20 9 + 11 = 20 8 + 12 = 20 7 + 13 = 20 6 + 14 = 20 5 + 15 = 20 4 + 16 = 20 3 + 17 = 20 2 + 18 = 20 1 + 19 = 20 0 + 20 = 20

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Number Bonds for 20 7 8 13 12 9 10 16 15 5 11 4 10 Pair the numbers to make 20

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Number Bonds for 20 0 7 20 13 2 6 17 19 1 18 3 14 Pair the numbers to make 20

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Number Bonds for 20 8 5 12 15 3 6 16 9 11 17 4 14 Pair the numbers to make 20

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Number Bonds for 20 1. 18 + ? = 20 Find the missing number 2. 13 + ? = 20 3. 16 + ? = 20 4. 10 + ? = 20 5. 14 + ? = 20 6. 5 + ? = 20 7. 1 + ? = 20 8. 3 + ? = 20 9. 0 + ? = 20 10. 9 + ? = 20 2 7 4 10 6 15 19 17 20 11

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1. 20 - 15 = ? Now try these 2. 20 - 2 = ? 3. 20 - 17 = ? 4. 20 - 12 = ? 5. 20 - 13 = ? 6. 20 - 3 = ? 7. 20 - 4 = ? 8. 20 - 6 = ? 9. 20 - 11 = ? 10. 20 - 7 = ? 5 18 3 8 7 17 16 14 9 13 Number Bonds for 20

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1. ? + 7 = 20 And finally these 2. 20 - 16 = ? 3. 18 + ? = 20 4. 20 - ? = 8 5. ? + 4 = 20 6. 20 - 5 = ? 7. 3 + ? = 20 8. 20 - 8 = ? 9. 9 + ? = 20 10. 20 - 4 = ? 13 4 2 12 16 15 17 12 11 16 Number Bonds for 20

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Worksheet (Print) 1. 18 + = 20 2. 13 + = 20 3. 16 + = 20 4. 10 + = 20 5. 14 + = 20 6. 5 + = 20 7. 1 + = 20 8. 3 + = 20 9. 0 + = 20 10. 9 + = 20 1. 20 - 15 = 2. 20 - 2 = 3. 20 - 17 = 4. 20 - 12 = 5. 20 - 13 = 6. 20 - 3 = 7. 20 - 4 = 8. 20 - 6 = 9. 20 - 11 = 10. 20 - 7 = 1. + 7 = 20 2. 20 - 16 = ? 3. 18 + = 20 4. 20 - = 8 5. + 4 = 20 6. 20 - 5 = 7. 3 + = 20 8. 20 - 8 = 9. 9 + = 20 10. 20 - 4 = 1. 18 + = 20 2. 13 + = 20 3. 16 + = 20 4. 10 + = 20 5. 14 + = 20 6. 5 + = 20 7. 1 + = 20 8. 3 + = 20 9. 0 + = 20 10. 9 + = 20 1. 20 - 15 = 2. 20 - 2 = 3. 20 - 17 = 4. 20 - 12 = 5. 20 - 13 = 6. 20 - 3 = 7. 20 - 4 = 8. 20 - 6 = 9. 20 - 11 = 10. 20 - 7 = 1. + 7 = 20 2. 20 - 16 = ? 3. 18 + = 20 4. 20 - = 8 5. + 4 = 20 6. 20 - 5 = 7. 3 + = 20 8. 20 - 8 = 9. 9 + = 20 10. 20 - 4 = Worksheet

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Interactive 20 ? 18 6 1 5 7 9 4 2 3 Click on the number that makes the middle number up to20 Click on remaining numbers to remove or go to next slide.

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? 13 6 1 5 2 9 4 7 8 Click on the number that makes the middle number up to 20 Click on remaining numbers to remove or go to next slide.

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? 9 6 8 7 4 3 5 11 2 Click on the number that makes the middle number up to 20 Click on remaining numbers to remove or go to next slide.

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? 7 16 18 19 14 11 15 12 Click on the number that makes the middle number up to 20 Click on remaining numbers to remove or go to next slide. 13

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? 4 17 18 19 13 11 15 12 Click on the number that makes the middle number up to 20 Click on remaining numbers to remove or go to next slide. 16

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? 12 7 6 9 3 1 5 4 Click on the number that makes the middle number up to 20 Click on remaining numbers to remove or go to next slide. 8

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? 14 7 9 8 3 2 5 4 Click on the number that makes the middle number up to 20 Click on remaining numbers to remove or go to next slide. 6

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? 15 6 1 8 7 9 4 5 3 Click on the number that makes the middle number up to20 Click on remaining numbers to remove or go to next slide.

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? 16 5 8 7 1 3 9 4 2 Click on the number that makes the middle number up to 20 Click on remaining numbers to remove or go to next slide.

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? 10 6 8 9 4 12 5 11 Click on the number that makes the middle number up to 20 Click on remaining numbers to remove or go to next slide. 10

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? 18 6 1 5 7 9 4 2 3 Click on the number that makes the middle number up to20 Click on remaining numbers to remove or go to next slide.

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Interactive Mixed ? 12 6 1 2 7 9 4 5 3 Click on the number that makes the middle number up to17 Click on remaining numbers to remove or go to next slide.

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? 7 8 1 5 7 9 4 6 3 Click on the number that makes the middle number up to13 Click on remaining numbers to remove or go to next slide.

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? 12 8 1 5 7 94 6 3 Click on the number that makes the middle number up to18 Click on remaining numbers to remove or go to next slide.

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? 8 6 1 5 7 2 4 3 Click on the number that makes the middle number up to17 Click on remaining numbers to remove or go to next slide. 9

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? 6 11 1 5 7 9 4 8 3 Click on the number that makes the middle number up to14 Click on remaining numbers to remove or go to next slide.

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? 8 6 1 5 89 4 7 11 Click on the number that makes the middle number up to15 Click on remaining numbers to remove or go to next slide.

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? 9 6 1 5 7 0 2 4 3 Click on the number that makes the middle number up to13 Click on remaining numbers to remove or go to next slide.

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? 11 8 1 5 7 9 4 3 Click on the number that makes the middle number up to17 Click on remaining numbers to remove or go to next slide. 6

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? 9 6 1 5 7 8 4 32 Click on the number that makes the middle number up to12 Click on remaining numbers to remove or go to next slide.

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? 3 16 11 15 17 9 14 12 13 Click on the number that makes the middle number up to15 Click on remaining numbers to remove or go to next slide.

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? 9 6 1 5 17 3 10 4 2 Click on the number that makes the middle number up to13

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