How can I multiply two numbers without using calculator? - Answers

To multiply two numbers without a calculator, you can use the traditional long multiplication method: write the numbers down, align them by their rightmost digits, and multiply each digit of the bottom number by each digit of the top number, carrying over as necessary. Alternatively, you can use methods like breaking the numbers into smaller parts (distributive property) or using visual aids like arrays or grids. Estimation techniques, such as rounding the numbers to the nearest ten, can also provide a quick approximate result.