4) Ostriches can weigh 140 pounds when they are full grown. How many times as much do ostriches weigh when they are full grown as when they are 2 months old? 5.5 Milestone Task HW Unless otherwise noted, SFUSD Math Core Curriculum is licensed under the Creative Commons Atritution 40 international License

This problem asks you to compare the weight of a full‐grown ostrich to that of a 2‑month‑old ostrich by finding how many times as much the full-grown ostrich weighs. Many versions of this problem give the information that a 2‑month‑old ostrich weighs 5 pounds. (If your problem includes a different weight for the 2‑month‑old, use that number in the calculation.) Step 1. Write down the known weights:   • Full‐grown ostrich = 140 pounds   • 2‑month‑old ostrich = 5 pounds Step 2. Form the ratio by dividing the full‐grown weight by the 2‑month‑old weight:   Ratio = 140 ÷ 5 Step 3. Do the division:   140 ÷ 5 = 28 So, if a 2‑month‑old ostrich weighs 5 pounds, a full‑grown ostrich weighs 28 times as much. Thus, the full‑grown ostrich weighs 28 times as much as the 2‑month‑old ostrich.