## 3 x 7

### To multiply 3 by 7, you can use the basic multiplication method

To multiply 3 by 7, you can use the basic multiplication method.

Step 1: Start by multiplying the units digit of the first number (3) by the second number (7). 3 multiplied by 7 equals 21.

Step 2: Write down the result (21) and carry over the tens digit (2).

Step 3: Multiply the tens digit of the first number (0 in this case, since 3 has no tens digit) by the second number (7). 0 multiplied by 7 equals 0.

Step 4: Add the carried over tens digit (2) to the result of the multiplication in Step 3 (0). The sum is 2.

Step 5: Write down the result (2) next to the units digit of the previous result (21). This gives us 21 in the units place and 2 in the tens place, resulting in 21 at the end.

So, 3 multiplied by 7 equals 21.

In algebraic notation, this multiplication can be expressed as:

3 x 7 = 21

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