Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 29 − 51 by rounding each number to the nearest 10: ______
- Estimate 58 − 85 by rounding each number to the nearest 10: ______
- Estimate 26 − 74 by rounding each number to the nearest 10: ______
- Estimate 42 + 63 by rounding each number to the nearest 10: ______
- Estimate 40 − 47 by rounding each number to the nearest 10: ______
- Estimate 44 − 73 by rounding each number to the nearest 10: ______
- Estimate 89 − 35 by rounding each number to the nearest 10: ______
- Estimate 84 + 78 by rounding each number to the nearest 10: ______
- Estimate 22 − 21 by rounding each number to the nearest 10: ______
- Estimate 75 − 37 by rounding each number to the nearest 10: ______
- Estimate 37 + 76 by rounding each number to the nearest 10: ______
- Estimate 30 − 63 by rounding each number to the nearest 10: ______
- Estimate 57 − 67 by rounding each number to the nearest 10: ______
- Estimate 46 + 24 by rounding each number to the nearest 10: ______
- Estimate 76 + 46 by rounding each number to the nearest 10: ______
- Estimate 40 + 88 by rounding each number to the nearest 10: ______
- Estimate 72 − 46 by rounding each number to the nearest 10: ______
- Estimate 63 − 51 by rounding each number to the nearest 10: ______
- Estimate 56 + 22 by rounding each number to the nearest 10: ______
- Estimate 44 − 50 by rounding each number to the nearest 10: ______