4*4

Answer: 16

Step-by-step explanation (suitable for 8th grade, in English as requested for the English subject)

1. Read the expression

• 4 × 4 means "four times four" or "four multiplied by four".
• The product is the result of multiplying 4 by 4.

2. Repeated addition view

• Multiplication is a shortcut for repeated addition.
• 4 × 4 = 4 + 4 + 4 + 4 = 16.

3. Area model (equal-length sides)

• Imagine a square with side length 4 units.
• Its area equals 4 × 4 = 16 square units.
• This shows why the product is 16.

4. Array model

• Create an array with 4 rows and 4 columns (4 by 4).
• There are 4 × 4 = 16 individual cells in total.
• This visualizes the multiplication as counting objects in a grid.

5. Multiplication table reference

• This is in the 4-times table.
• From memory or a table: 1×4 = 4, 2×4 = 8, 3×4 = 12, 4×4 = 16.
• So, 4 × 4 = 16.

6. Distributive property check

• 4 × 4 can be seen as (4 × 2) + (4 × 2) = 8 + 8 = 16.
• Another valid form: (2 × 4) + (2 × 4) = 8 + 8 = 16.
• This confirms the result using another approach.

7. Mental math shortcut

• Double 4 to get 8, then double again: 8 × 2 = 16.
• Or think of 4 × 4 as (4 × 2) × 2 = 8 × 2 = 16.
• These shortcuts help verify the answer quickly.

8. Real-life example

• If you have 4 bags and each bag has 4 apples, total apples = 4 × 4 = 16 apples.
• A practical check of the same idea.

9. Check with division

• If 16 is the product, then 16 ÷ 4 = 4.
• This is another way to verify the correctness.

Key vocabulary (relevant to English/Math context)

• product: the result of multiplication (16 in this case)
• factor/multiplicand/multiplier: the numbers being multiplied (4 and 4)
• times: another word for multiplication (4 times 4)
• area model, array model: visual methods to illustrate multiplication

If you’d like, I can provide a Russian translation of the same steps or adapt the explanation to a pure math style without English terminology.