To estimate 627 and 442 by rounding to the nearest ten:
- Round 627 to the nearest ten: 630
- Round 442 to the nearest ten: 440
Now, subtract the rounded numbers:
630 - 440 = 190
So, the estimated difference is:
Estimate: 190
And the equation would be:
627 - 442 = 190
If you have any further questions or need help with something else, feel free to ask!