SAT-97: Data Table Extraction

SAT-97: Data Table Extraction

Description: Dense tables hold more numbers than any one question needs. The skill is extracting exactly the right values — the correct row and column — and combining them, without drowning in the rest. This builds on SAT-53 with a focus on precision under time pressure.

The extraction routine

1. Read the question first and underline which value(s) it needs.
2. Find the matching row and column; trace to where they meet.
3. Combine only the needed cells (add a row/column, or take a difference).
4. Re-check the units and any "Total" row before finalizing.

(Oʻzbekcha: avval savolni oʻqing, kerakli qator va ustunni toping, faqat keraklilarini birlashtiring.)

Our example table

Students by grade and lunch choice:

• Grade 9: Pizza 30, Salad 10 (row total 40).
• Grade 10: Pizza 25, Salad 35 (row total 60).
• Column totals: Pizza 55, Salad 45; grand total 100.

Worked Example 1 — single cell

How many Grade 10 students chose Salad?

• Grade 10 row × Salad column = 35. One cell, nothing else needed.

Worked Example 2 — combine a column

How many students total chose Pizza?

• Add the Pizza column: 30 + 25 = 55 (matches the column total).

(Oʻzbekcha: "jami pitsa" uchun pitsa ustunini qoʻshamiz.)

Worked Example 3 — a percentage from the table

What percent of Grade 9 students chose Pizza?

• Grade 9 Pizza = 30; Grade 9 total = 40. Percent = 30/40 × 100% = 75%.
• Note the denominator is the Grade 9 row total (40), not the grand total (100) — read the question's "of."

Worked Example 4 — a difference question

How many more students chose Pizza than Salad overall?

• Pizza total 55, Salad total 45. Difference = 55 − 45 = 10.

Trap: using the grand total when the question restricts to one group (like "of Grade 9"). The word "of" tells you the correct denominator (review SAT-59). (Oʻzbekcha: "of" soʻzi toʻgʻri maxrajni koʻrsatadi — butun jamimi yoki bitta guruhmi.)

Why reading the question first saves time

A dense table is designed to overwhelm — it deliberately includes numbers you don't need. If you study the whole table before reading the question, you waste time absorbing irrelevant data and you're more likely to grab the wrong cell. By reading the question first, you walk into the table already knowing exactly which row, column, or total you're hunting for, and everything else becomes background noise you can ignore. This single ordering habit is the difference between a slow, error-prone table question and a five-second lookup. (Oʻzbekcha: avval savolni oʻqisangiz, jadvaldan aynan kerakli katakni qidirasiz va keraksiz sonlar chalgʻitmaydi.)

Watch for footnotes and units in the header

Tables often hide a crucial detail in the title or a footnote: "values in thousands," "percentages, not counts," or "data for 2019 only." A number read correctly but interpreted in the wrong units is still wrong. Before you finalize, glance at the table's header and any small print so you know what each number actually represents. (Oʻzbekcha: jadval sarlavhasi yoki izohida "minglarda", "foizlarda" kabi muhim maʼlumot boʻlishi mumkin — eʼtibor bering.)

Practice 1

How many Grade 9 students are there in total?

Practice 2

What percent of all 100 students chose Salad?

Key words — Kalit soʻzlar

• Extract — ajratib olish
• Row / Column — qator / ustun
• Cell — katak
• Total — jami
• Grand total — umumiy jami
• Difference — ayirma
• Percent of — ... ning foizi
• Denominator — maxraj
• Units — oʻlchov birliklari

Summary

• Read the question first; underline exactly which values you need.
• Find the right row × column, then combine only those cells.
• The word "of" sets the denominator — group total vs grand total.