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.
Answer these 3, then press Show my path. No grade — this just points you to the right level.
1. Skip count by 4: 4, 8, ___?
2. 2/3 = ?/6 — what is the missing top number?
3. What is 5 × 3?
A ratio table lists equal ratios. Each new column multiplies both numbers by the same value — just like making equivalent fractions.
Your quick check picks one for you, but you can switch any time:
Level 0 Double both numbers, one step at a time.
A. The ratio is 1:2. Double the first number: 1 × 2 = ___?
1 × 2 = 2.
B. Double the second number too: 2 × 2 = ___?
2 × 2 = 4.
C. So 1:2 doubled is…?
Both doubled: 2:4.
Level 1 Multiply both numbers by 3.
A. The ratio is 2:5. Multiply the first by 3: 2 × 3 = ___?
2 × 3 = 6.
B. Multiply the second by 3: 5 × 3 = ___?
5 × 3 = 15.
Level 2 Fill the missing table cell.
A. Table: 3 → 12, 6 → ?. Each top is multiplied by 4. So 6 × 4 = ___?
3 × 4 = 12, so 6 × 4 = 24.
B. Equivalent ratio: 4:6 = 8:?. Both numbers doubled, so 6 × 2 = ___?
4 doubled is 8, so 6 doubled is 12.
1. The ratio 2:3 is multiplied by 4. The first number becomes 2 × 4 = ___?
2 × 4 = 8.
2. Which ratio is equal to 1:5?
Multiply both by 3: 1×3=3, 5×3=15 → 3:15.
You've practiced exactly what Lesson 3-2 uses. Time to dive in.
Start Lesson 3-2 →