49 is about 50.
60 × 50 = 3,000
The answer will be about 3,000.
- The multiplication will be done in two parts. First multiply by the ones. In this calculation the ones value is nine.
- Next, multiply by the tens. Place a zero in the ones column to represent multiplying by ten, and then multiply by the four.
- Add the two together. What is your answer?
- Check your answer is close to your estimate.