Multiply by 4

key notes :

Multiplication Means Repeated Addition

  • Multiplying by 4 means adding a number 4 times.
  • Example: 4 × 3 = 3 + 3 + 3 + 3 = 12

Multiplication Table of 4 🧮

  • Memorizing the 4 times table helps to multiply quickly:
  • 4 × 1 = 4
  • 4 × 2 = 8
  • 4 × 3 = 12
  • 4 × 4 = 16
  • 4 × 5 = 20
  • 4 × 6 = 24
  • 4 × 7 = 28
  • 4 × 8 = 32
  • 4 × 9 = 36
  • 4 × 10 = 40

Tip: Double and Double Trick ✌️

  • To multiply by 4, double a number, then double it again.
  • Example: 4 × 6 → double 6 = 12 → double 12 = 24

Visualize Groups 🎨

  • Multiplying by 4 is like making 4 groups of something.
  • Example: 4 × 5 = 4 groups of 5 apples = 20 apples 🍎🍎🍎🍎

Skip Counting by 4 🏃‍♂️

  • You can count 4, 8, 12, 16… to multiply easily.

Use in Real Life 🌟

  • Buying 4 packets of pencils with 6 pencils in each → 4 × 6 = 24 pencils
  • 4 wheels on each car, 5 cars → 4 × 5 = 20 wheels

Practice Makes Perfect ✨

  • Solve problems using tables, repeated addition, skip counting, and double-and-double methods.

Learn with an example

Multiply.

4 × 1 =

The identity property of multiplication says that the product of any number and 1 is that number. So, the product of 4 and 1 is 4.

4 × 1 = 4

You can also look at this model to see that 4 × 1 = 4. This model shows 4 rows with 1 dot in each row. There are 4 dots in all.

This number line also shows that 4 × 1 = 4. Count by 1s on the number line. Count forward 4 times.

The arrow ends at 4.

4 × 1 = 4

Multiply.

4 x 0 =

The zero property of multiplication says that the product of any number and 0 is 0. This means that 0 times any number is 0.

So, the product of 4 and 0 is 0.

4 x 0 =0

Multiply.

2 × 4 =

This array shows that 2 × 4 = 8. It has 2 rows with 4 dots in each row.

There are 8 dots in all.

2 × 4 = 8

This number line also shows that 2 × 4 = 8. Count by 4s on the number line. Count forward 2 times.

The last arrow ends at 8.

2 × 4 = 8

let’s practice!