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 | | | | | | | | | | | | | | | 1. | | 10 + 70 = | 80 | | 2. | | 30 + 20 = | 50 | | 3. | | 60 + 80 = | 140 | | | | | | | | | | | | | | | | 4. | | 20 + 40 = | 60 | | 5. | | 30 + 10 = | 40 | | 6. | | 20 + 20 = | 40 | | | | | | | | | | | | | | | | 7. | | 40 + 10 = | 50 | | 8. | | 80 + 30 = | 110 | | 9. | | 60 + 70 = | 130 | | | | | | | | | | | | | | | | 10. | | 90 + 20 = | 110 | | 11. | | 60 + 20 = | 80 | | 12. | | 50 + 90 = | 140 | | | | | | | | | | | | | | | | 13. | | 30 + 80 = | 110 | | 14. | | 30 + 90 = | 120 | | 15. | | 50 + 40 = | 90 |
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