Multiply one-digit numbers by two-digit numbers

๐ŸŽฏ What Does It Mean?

Multiplying a 1-digit number (like 2, 3, 5, 7) by a 2-digit number (like 12, 25, 48) means repeated addition.

Example:
3 ร— 24 = 24 + 24 + 24 โœ…


๐Ÿง  Steps to Multiply (Simple Method)

โœ๏ธ 1. Multiply Ones Place First

  • Multiply the ones digit of the 2-digit number by the 1-digit number
    Example:
    3 ร— 27
    Step 1: 3 ร— 7 = 21 โ†’ write 1, carry 2

โœ๏ธ 2. Multiply Tens Place

  • Multiply the tens digit with the 1-digit number and add the carry
    Step 2: 3 ร— 2 = 6
    6 + 2 (carry) = 8

โœ… Final Answer: 81

So, 3 ร— 27 = 81


๐Ÿ”ข Example Problems

QuestionWorkingAnswer
4 ร— 23(4 ร— 3 = 12) โ†’ 2, carry 1
(4 ร— 2 = 8 +1 = 9)
92
6 ร— 14(6 ร— 4 = 24) โ†’ 4, carry 2
(6 ร— 1 = 6 +2 = 8)
84

๐Ÿงฎ Why Learn This?

โœ” Helps in bigger multiplication
โœ” Useful in daily life (money, shopping, counting items)
โœ” Builds strong math skills


๐Ÿ† Tips & Tricks

โœจ Tip 1: Practice with tables (1 to 9) to make it easy
โœจ Tip 2: Always multiply from the ones place
โœจ Tip 3: Donโ€™t forget to add the carry
โœจ Tip 4: Check your answer using estimation

Example:
7 ร— 29 โ‰ˆ 7 ร— 30 = 210 (approx)
Actual answer: 203


๐ŸŒˆ Fun Shortcut

If the 2-digit number ends in 0, multiply the 1st number and add a zero.

Example:
6 ร— 30 = 6 ร— 3 = 18 โ†’ 180

Learn with an example

11 x 6 =___

  • Multiply the ones.
    • 11 x 6 = 6
  • Multiply the tens.
    • 11 x 6 = 66
  • The product is 66.

11 x 3 =___

  • Multiply the ones.
    • 11 x 3 = 3
  • Multiply the tens.
    • 11 x 3 = 33
  • The product is 33.

11 x 8 =___

  • Multiply the ones.
    • 11 x 8 = 8
  • Multiply the tens.
    • 11 x 8 = 88
  • The product is 88.

Let’s practice!๐Ÿ–Š๏ธ