Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 50 − 67 by rounding each number to the nearest 10: ______
- Estimate 67 − 63 by rounding each number to the nearest 10: ______
- Estimate 83 + 49 by rounding each number to the nearest 10: ______
- Estimate 80 + 71 by rounding each number to the nearest 10: ______
- Estimate 47 − 39 by rounding each number to the nearest 10: ______
- Estimate 38 + 83 by rounding each number to the nearest 10: ______
- Estimate 46 − 41 by rounding each number to the nearest 10: ______
- Estimate 88 − 73 by rounding each number to the nearest 10: ______
- Estimate 75 + 35 by rounding each number to the nearest 10: ______
- Estimate 73 + 31 by rounding each number to the nearest 10: ______
- Estimate 29 + 63 by rounding each number to the nearest 10: ______
- Estimate 83 + 67 by rounding each number to the nearest 10: ______
- Estimate 89 + 30 by rounding each number to the nearest 10: ______
- Estimate 45 − 59 by rounding each number to the nearest 10: ______
- Estimate 52 + 21 by rounding each number to the nearest 10: ______
- Estimate 68 − 88 by rounding each number to the nearest 10: ______
- Estimate 57 + 36 by rounding each number to the nearest 10: ______
- Estimate 85 − 77 by rounding each number to the nearest 10: ______
- Estimate 35 + 41 by rounding each number to the nearest 10: ______
- Estimate 23 + 71 by rounding each number to the nearest 10: ______