A ratio table grows a ratio by multiplying both numbers by the same amount — exactly like making equivalent fractions. To fill rows fast you lean on skip counting and multiplication facts.
These are words you'll need to already know to follow this lesson — not the new words the lesson teaches. Review each one, its meaning, and the example so the new lesson makes sense from the start.
Level 1 To add the same number many times to find a total.
Example: 5 × 3 means add 5 three times: 5 + 5 + 5 = 15.
Level 1 To count by jumping the same amount each time.
Example: Skip count by 4: 4, 8, 12.
Level 1 Fractions that look different but show the same amount.
Example: 1/3 and 2/6 are equivalent fractions.
Level 1 A chart with rows and columns that holds numbers in order.
Example: Read the row across to find that 3 matches 12.
These check the skills you'll need for this lesson — not the new lesson itself. Answer all 3, then press Show my path. No grade — it just suggests where to start.
1. Skip count by 4: 4, 8, ___?
2. 2/3 = ?/6 — what is the missing top number?
3. What is 5 × 3?
Vocabulary previewed and basics checked. Time to start the lesson.
Start Lesson 3-2 →