Session 1 Grade 8 OSTP Practice Test Questions TOC | Lumos Learning

Session 1 Question & Answer Key Resources Grade 8 Mathematics - Skill Builder + OSTP Practice

Grade 8 Mathematics - Skill Builder + OSTP Practice Session 1

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The sum of the digits of a certain two-digit number is 7. Reversing its digits increases the number by 9. What is the original number?