Identify numbers: Identify the numbers to be multiplied, which are 50 and 70.
Multiply tens place: Multiply the tens place of both numbers first, which is 5×7. 5×7=35.
Add zeros for place value: Since both numbers are in the tens place, we need to add two zeros to the product of the tens place to account for the place value. 35 becomes 3500.
Write final answer: Write down the final answer. Therefore, 50×70=3500.