Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 84 − 84 by rounding each number to the nearest 10: ______
- Estimate 55 − 48 by rounding each number to the nearest 10: ______
- Estimate 42 + 29 by rounding each number to the nearest 10: ______
- Estimate 74 − 53 by rounding each number to the nearest 10: ______
- Estimate 29 + 73 by rounding each number to the nearest 10: ______
- Estimate 76 + 37 by rounding each number to the nearest 10: ______
- Estimate 66 + 77 by rounding each number to the nearest 10: ______
- Estimate 40 − 66 by rounding each number to the nearest 10: ______
- Estimate 52 + 68 by rounding each number to the nearest 10: ______
- Estimate 89 + 40 by rounding each number to the nearest 10: ______
- Estimate 45 + 58 by rounding each number to the nearest 10: ______
- Estimate 64 + 68 by rounding each number to the nearest 10: ______
- Estimate 73 + 63 by rounding each number to the nearest 10: ______
- Estimate 74 + 52 by rounding each number to the nearest 10: ______
- Estimate 85 + 78 by rounding each number to the nearest 10: ______
- Estimate 48 − 61 by rounding each number to the nearest 10: ______
- Estimate 70 + 83 by rounding each number to the nearest 10: ______
- Estimate 68 + 21 by rounding each number to the nearest 10: ______
- Estimate 80 − 55 by rounding each number to the nearest 10: ______
- Estimate 80 − 68 by rounding each number to the nearest 10: ______