Intro to multiplication (article) | Khan Academy (2024)

Use arrays and repeated addition to visualize multiplication.

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  • hutchism

    6 years agoPosted 6 years ago. Direct link to hutchism's post “Is it easy to count by 9'...”

    Is it easy to count by 9's ?

    (18 votes)

    • AMMAD RASOOL

      6 years agoPosted 6 years ago. Direct link to AMMAD RASOOL's post “If you keep practicing mu...”

      If you keep practicing multiplication you'll get really good at counting by 9's. But even I sometimes can get lost and I'm in 7th grade!

      (7 votes)

  • Rikki Niemi

    6 years agoPosted 6 years ago. Direct link to Rikki Niemi's post “does array help you do mu...”

    does array help you do mutiplecation

    (15 votes)

  • Alvin

    5 years agoPosted 5 years ago. Direct link to Alvin's post “What is the max number in...”

    What is the max number in the world

    (9 votes)

    • Logan M.

      5 years agoPosted 5 years ago. Direct link to Logan M.'s post “Infinity. Infinity is the...”

      Infinity. Infinity is the concept of a number larger than any number anybody could ever think of. It is represented by this symbol:∞

      (7 votes)

  • Mia Rosa

    4 years agoPosted 4 years ago. Direct link to Mia Rosa's post “I am a student at saint T...”

    I am a student at saint Theresa private school and I have bin using khan Academy and I rely like khan Academy. 😃

    (10 votes)

  • Damiya Underwood

    7 years agoPosted 7 years ago. Direct link to Damiya Underwood's post “how made multiplication?”

    how made multiplication?

    (6 votes)

    • 🌵 Lexi C. 🌵

      7 years agoPosted 7 years ago. Direct link to 🌵 Lexi C. 🌵's post “It is thought that the ea...”

      It is thought that the early Egyptians were the first to discover multiplication and to use it effectively as well as teach it to one another. The Egyptians first settled in 6000 B.C. along the Nile valley where they quickly began to record lunar phase patterns as well as the seasonal patterns for both religious and agricultural reasons.
      Read more at https://www.reference.com/math/discovered-multiplication-40fa539d569248c6#

      (9 votes)

  • Kiernan

    7 years agoPosted 7 years ago. Direct link to Kiernan's post “I'm curious as to how one...”

    I'm curious as to how one is supposed to memorize the multiplication chart. I'm 18, and I missed lots of school. I've always been really frustrated with math because I was never properly taught. I feel like it's harder for me to learn math now than it ever was when I was younger. I've looked at multiplication charts and I've even written them down because people say that that will help you memorize them more. I still haven't memorized any of them. I'm not fast with it either. This might be a dumb question, but I really don't know how it's done or what I'm doing wrong. If anyone could help me with that, or give me some pointers, that would be amazing! I'm not fast with multiplication, and I haven't ever done division, not even in school. My teachers kept putting me in another math class and moved me up even when I hadn't completed anything. Math has gotten so much harder and a lot more confusing than before. Please help..

    (8 votes)

    • Nguyen Vo

      7 years agoPosted 7 years ago. Direct link to Nguyen Vo's post “59% of the times table is...”

      59% of the times table is very simple. The 1s columm and roll you have to mastered, there's also the 10s, 2s and 5s which are very easy to master and all of them adding up to 59%. Next, you should be looking forward to learn the 9s, once you master that, learn 3s and 4s. I recommend listening to times table songs. From that, you just learn your way up the tables.

      (5 votes)

  • EEJ

    7 years agoPosted 7 years ago. Direct link to EEJ's post “What's 118 x 118?”

    What's 118 x 118?

    (7 votes)

    • daisuu

      8 months agoPosted 8 months ago. Direct link to daisuu's post “After a bit of pain, I be...”

      After a bit of pain, I believe the answer to be 13,924. But I suck at maths so you might want to confirm this with a calculator. Thank you for waiting 7 years.

      (3 votes)

  • hutchism

    6 years agoPosted 6 years ago. Direct link to hutchism's post “Is it true that numbers n...”

    Is it true that numbers never end ?

    (5 votes)

    • ‧͙⁺˚*・༓𝐸𝓁𝒾𝓏𝒶𝒷𝑒𝓉𝒽 𝒴.༓・*˚⁺‧͙

      6 years agoPosted 6 years ago. Direct link to ‧͙⁺˚*・༓𝐸𝓁𝒾𝓏𝒶𝒷𝑒𝓉𝒽 𝒴.༓・*˚⁺‧͙'s post “Yes. To prove this, think...”

      Yes. To prove this, think of this: you start with one. To make it bigger, you tag a zero on the end, making 10. To make it bigger again, add another zero, and another and another. Upon doing this, you'll realize you can add zeroes forever, thus making the number larger and larger. This is also the case in terms of numbers getting smaller and smaller. This is the concept of infinity. However, infinity is not a number, but a concept. All numbers can be placed on a number line, but infinity can never be put on the number line since there is always something bigger than the biggest number you can imagine.

      (8 votes)

  • cmedina

    7 years agoPosted 7 years ago. Direct link to cmedina's post “Is there more ways of fin...”

    Is there more ways of finding multiplication and division

    (7 votes)

  • kavadai.mandloi

    5 years agoPosted 5 years ago. Direct link to kavadai.mandloi's post “can you multiply a negati...”

    can you multiply a negative number, please explain

    (4 votes)

    • 📸 Tom Smith 📷

      5 years agoPosted 5 years ago. Direct link to 📸 Tom Smith 📷's post “Yes you can. Say you have...”

      Yes you can. Say you have this question: "what is -12*3?" Well, this is -36. Why? Well, to do this, all you need to do is take away the "-". Now you have 12*3. This is 36. All you need to do now is add the "-" to it again. Next question. "What is -4*-8?".
      This is 32. To do this, just remove the two "-". 4*8=32. However, since you are multiplying two negative numbers, you keep 32 as it is. I hope this answered your question!

      (4 votes)

Intro to multiplication (article) | Khan Academy (2024)

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