Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 48 + 89 by rounding each number to the nearest 10: ______
- Estimate 77 + 35 by rounding each number to the nearest 10: ______
- Estimate 50 − 59 by rounding each number to the nearest 10: ______
- Estimate 56 − 58 by rounding each number to the nearest 10: ______
- Estimate 76 − 42 by rounding each number to the nearest 10: ______
- Estimate 21 − 41 by rounding each number to the nearest 10: ______
- Estimate 65 − 57 by rounding each number to the nearest 10: ______
- Estimate 39 + 33 by rounding each number to the nearest 10: ______
- Estimate 58 − 63 by rounding each number to the nearest 10: ______
- Estimate 26 − 64 by rounding each number to the nearest 10: ______
- Estimate 82 + 55 by rounding each number to the nearest 10: ______
- Estimate 88 + 75 by rounding each number to the nearest 10: ______
- Estimate 46 − 80 by rounding each number to the nearest 10: ______
- Estimate 49 − 73 by rounding each number to the nearest 10: ______
- Estimate 73 + 77 by rounding each number to the nearest 10: ______
- Estimate 25 − 58 by rounding each number to the nearest 10: ______
- Estimate 70 − 67 by rounding each number to the nearest 10: ______
- Estimate 61 + 56 by rounding each number to the nearest 10: ______
- Estimate 80 + 22 by rounding each number to the nearest 10: ______
- Estimate 83 + 83 by rounding each number to the nearest 10: ______