Multiply by 2

key notes :

💡 Twice a number to get a multiple of 2

👇 Multiplication table of 2

  • 2 × 0 =0
  • 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
  • 2 × 11 =22
  • 2 × 12 =24

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!