hello :)
9×_=90 trying to solve this equation
1)90÷9
=10
2)10 is your answer!
Sarah's age = 9 years
Sarah's grandfather's age = 90 years
We divide Sarah's grandfather's age by Sarah's age.
90 years/ 9 years
= 10 times.
Therefore, Sarah's grandfather is 10 times as old as Sarah
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