Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 60 + 63 by rounding each number to the nearest 10: ______
- Estimate 83 + 55 by rounding each number to the nearest 10: ______
- Estimate 70 + 50 by rounding each number to the nearest 10: ______
- Estimate 24 + 89 by rounding each number to the nearest 10: ______
- Estimate 30 + 60 by rounding each number to the nearest 10: ______
- Estimate 89 − 60 by rounding each number to the nearest 10: ______
- Estimate 45 − 43 by rounding each number to the nearest 10: ______
- Estimate 34 − 83 by rounding each number to the nearest 10: ______
- Estimate 79 + 81 by rounding each number to the nearest 10: ______
- Estimate 70 − 87 by rounding each number to the nearest 10: ______
- Estimate 24 + 64 by rounding each number to the nearest 10: ______
- Estimate 76 + 44 by rounding each number to the nearest 10: ______
- Estimate 69 + 38 by rounding each number to the nearest 10: ______
- Estimate 58 − 26 by rounding each number to the nearest 10: ______
- Estimate 72 − 75 by rounding each number to the nearest 10: ______
- Estimate 77 + 72 by rounding each number to the nearest 10: ______
- Estimate 23 − 72 by rounding each number to the nearest 10: ______
- Estimate 23 − 49 by rounding each number to the nearest 10: ______
- Estimate 76 + 71 by rounding each number to the nearest 10: ______
- Estimate 80 + 87 by rounding each number to the nearest 10: ______