Multiply by 2

key notes :

Meaning of Multiply by 2

  • Multiplying a number by 2 means adding the number to itself.
  • Example: 2 × 3 = 3 + 3 = 6 ✅

Multiplication Table of 2 📝

  • 2 × 1 = 2
  • 2 × 2 = 4
  • 2 × 3 = 6
  • 2 × 4 = 8
  • 2 × 5 = 10
  • 2 × 6 = 12
  • 2 × 7 = 14
  • 2 × 8 = 16
  • 2 × 9 = 18
  • 2 × 10 = 20

Trick to Remember ✅

  • The 2 times table is the same as counting by twos: 2, 4, 6, 8, 10, …

Even Numbers Connection 🔢

  • All results of multiplying by 2 are even numbers.
  • Example: 2 × 7 = 14 → 14 is even

Using in Real Life 🌟

  • If you have 2 bags and each has 3 apples, total apples = 2 × 3 = 6 🍎🍎🍎🍎🍎🍎
  • Easy way to double things in everyday life.

Visual Tip 🖍️

  • Draw 2 groups of objects to see multiplication.
  • Example: 2 × 4 → Draw 2 groups with 4 stars each → 8 stars ⭐⭐⭐⭐ ⭐⭐⭐⭐

Learn with an example

Multiply.

2 × 2 =___

This array shows that 2 × 2 = 4. It has 2 rows with 2 dots in each row.

There are 4 dots in all.

2 × 2 = 4

Multiply.

2 × 8 =___

This array shows that 2 × 8 = 16. It has 2 rows with 8 dots in each row.

There are 16 dots in all.

2 × 8 = 16

Multiply.

2 × 10 =

This array shows that 2 × 10 = 20. It has 2 rows with 10 dots in each row.

There are 20 dots in all.

2 × 10 = 20

This number line also shows that 2 × 10 = 20. Count by 10s on the number line. Count forward 2 times.

The last arrow ends at 20.

2 × 10 = 20

let’s practice!