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Add the values $10$ and $5$
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$15\cdot 18=15\cdot \left(10+8\right)$
Learn how to solve equations problems step by step online. Compare 15*18=(10+5)(10+8). Add the values 10 and 5. Add the values 10 and 8. Multiply 15 times 18. Multiply 15 times 18.