standard_description: Express a fraction with denominator 10 as an equivalent fraction with denominator 100, and use this technique to add two fractions with respective denominators 10 and 100. (Students who can generate equivalent fractions can develop strategies for adding fractions with unlike denominators in general. But addition and subtraction with unlike denominators in general is not a requirement at this grade.) For example, express 3/10 as 30/100, and add 3/10 + 4/100 = 34/100.
Grade 4 expectations in this domain are limited to fractions with denominators 2, 3, 4, 5, 6, 8, 10, 12, and 100.
problem_activity: Task
Maned wolves are a threatened species that live in South America. People estimate that there are about 24,000 of them living in the wild.
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The dhole is an endangered species that lives in Asia. People estimate there are ten times as many maned wolves as dholes living in the wild.
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About how many dholes are there living in the wild?


aligns: no