Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 29 + 39 by rounding each number to the nearest 10: ______
- Estimate 69 − 80 by rounding each number to the nearest 10: ______
- Estimate 78 − 76 by rounding each number to the nearest 10: ______
- Estimate 44 + 51 by rounding each number to the nearest 10: ______
- Estimate 77 − 50 by rounding each number to the nearest 10: ______
- Estimate 75 − 76 by rounding each number to the nearest 10: ______
- Estimate 48 + 85 by rounding each number to the nearest 10: ______
- Estimate 73 − 45 by rounding each number to the nearest 10: ______
- Estimate 25 + 23 by rounding each number to the nearest 10: ______
- Estimate 42 + 58 by rounding each number to the nearest 10: ______
- Estimate 40 − 69 by rounding each number to the nearest 10: ______
- Estimate 44 + 53 by rounding each number to the nearest 10: ______
- Estimate 84 + 65 by rounding each number to the nearest 10: ______
- Estimate 38 − 47 by rounding each number to the nearest 10: ______
- Estimate 34 + 32 by rounding each number to the nearest 10: ______
- Estimate 28 + 69 by rounding each number to the nearest 10: ______
- Estimate 65 + 37 by rounding each number to the nearest 10: ______
- Estimate 21 − 65 by rounding each number to the nearest 10: ______
- Estimate 89 + 85 by rounding each number to the nearest 10: ______
- Estimate 65 − 22 by rounding each number to the nearest 10: ______