🎰Expert6-8

Multiplication Table by 21

Advanced 21×21 multiplication chart with triple-7 patterns. Master times tables through 21 with interactive format. Great for grades 6-8 and math enrichment.

Ages 11-14 • Interactive & Printable

×123456789101112131415161718192021
1123456789101112131415161718192021
224681012141618202224262830323436384042
3369121518212427303336394245485154576063
44812162024283236404448525660646872768084
55101520253035404550556065707580859095100105
66121824303642485460667278849096102108114120126
7714212835424956637077849198105112119126133140147
881624324048566472808896104112120128136144152160168
9918273645546372819099108117126135144153162171180189
10102030405060708090100110120130140150160170180190200210
11112233445566778899110121132143154165176187198209220231
121224364860728496108120132144156168180192204216228240252
1313263952657891104117130143156169182195208221234247260273
1414284256708498112126140154168182196210224238252266280294
15153045607590105120135150165180195210225240255270285300315
16163248648096112128144160176192208224240256272288304320336
171734516885102119136153170187204221238255272289306323340357
181836547290108126144162180198216234252270288306324342360378
191938577695114133152171190209228247266285304323342361380399
2020406080100120140160180200220240260280300320340360380400420
2121426384105126147168189210231252273294315336357378399420441

🎯 Why Learn the 21×21 Multiplication Table?

The 21×21 multiplication table shows the relationship between 7× and tripling. Since 21 = 3 × 7, this table reinforces understanding of how multiplication facts connect.

✨ What Makes This Table Special

  • Triple the 7× table (21 = 3 × 7)
  • Legal age connection
  • 441 multiplication facts
  • Combines 7× and tripling skills

🌍 Real-World Applications

Calculate legal drinking age (21 in many countries), count blackjack (goal of 21), work with 21-day cycles, or understand three-week patterns in scheduling.

🎨 Fun Fact!

21 = 3 × 7, so every number in the 21× table is triple the 7× table! Know 7 × 4 = 28? Then 21 × 4 = 84. It's 7× times three!

💡 Learning Tip

If you know your 7× table, triple it for 21×! Or think 21 = 20 + 1, so 21 × 6 = (20 × 6) + (1 × 6) = 120 + 6 = 126.

🔍 Pattern to Notice

The 21× products: 21, 42, 63, 84, 105, 126... Notice they follow the same odd/even pattern as the 7× table, just tripled!

🎮 Ready to Practice?

Now that you have your 21×21 multiplication table, test your skills with our interactive tools!

Get detailed step-by-step explanations for any math problem, from basic arithmetic to advanced calculus. Our AI math tutor breaks down complex problems into easy-to-understand steps.

Generate unlimited custom quizzes tailored to your learning level and track your progress. Create comprehensive practice tests to prepare for exams with personalized learning.

21×21 Multiplication Table Chart (Printable) - Times Tables 1-21