Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 38 − 77 by rounding each number to the nearest 10: ______
- Estimate 39 − 80 by rounding each number to the nearest 10: ______
- Estimate 43 + 52 by rounding each number to the nearest 10: ______
- Estimate 73 + 27 by rounding each number to the nearest 10: ______
- Estimate 46 − 87 by rounding each number to the nearest 10: ______
- Estimate 77 − 24 by rounding each number to the nearest 10: ______
- Estimate 66 + 59 by rounding each number to the nearest 10: ______
- Estimate 45 + 84 by rounding each number to the nearest 10: ______
- Estimate 63 − 77 by rounding each number to the nearest 10: ______
- Estimate 47 + 74 by rounding each number to the nearest 10: ______
- Estimate 49 − 47 by rounding each number to the nearest 10: ______
- Estimate 81 + 33 by rounding each number to the nearest 10: ______
- Estimate 82 − 69 by rounding each number to the nearest 10: ______
- Estimate 50 − 69 by rounding each number to the nearest 10: ______
- Estimate 26 + 35 by rounding each number to the nearest 10: ______
- Estimate 26 + 41 by rounding each number to the nearest 10: ______
- Estimate 83 − 40 by rounding each number to the nearest 10: ______
- Estimate 73 − 54 by rounding each number to the nearest 10: ______
- Estimate 32 − 80 by rounding each number to the nearest 10: ______
- Estimate 59 + 56 by rounding each number to the nearest 10: ______