intro 60 Make sure you have your study guide ready! You are about to learn all about Estimating. Which number is in the hundreds place? 5 reminder 80 If the digit to the right of the given place value is greater than five, add 1 to the digit in the given place value. What is 92,345 rounded to the nearest thousand? 92,000 93,000 92,300 92,000 reminder Estimating helps us know if our exact answer is reasonable. attention rectangle Remember, you can round to your comfort level! If each number is rounded to the nearest thousand, what will the subtraction problem for 4536 - 3095 look like? 4000 - 3000 5000 - 4000 5000 - 3000 5000 - 3000 reminder Don't forget to check with a related addition problem! attention rectangle Did you catch that? Sometimes an estimation is good enough! What will this addition problem look like when all numbers are rounded to the nearest ten? 10+20+40+0+20 20+20+40+10+20 20+20+40+10+10 20+20+40+10+20 prompt Try estimating this sum in your study guide. What is the sum of the original addition problem? 1,373 1373