Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 64 + 87 by rounding each number to the nearest 10: ______
- Estimate 40 + 77 by rounding each number to the nearest 10: ______
- Estimate 86 + 34 by rounding each number to the nearest 10: ______
- Estimate 39 + 28 by rounding each number to the nearest 10: ______
- Estimate 29 + 88 by rounding each number to the nearest 10: ______
- Estimate 36 − 40 by rounding each number to the nearest 10: ______
- Estimate 41 + 34 by rounding each number to the nearest 10: ______
- Estimate 56 + 38 by rounding each number to the nearest 10: ______
- Estimate 41 + 60 by rounding each number to the nearest 10: ______
- Estimate 24 + 47 by rounding each number to the nearest 10: ______
- Estimate 54 − 40 by rounding each number to the nearest 10: ______
- Estimate 54 − 74 by rounding each number to the nearest 10: ______
- Estimate 78 + 47 by rounding each number to the nearest 10: ______
- Estimate 56 + 37 by rounding each number to the nearest 10: ______
- Estimate 43 − 88 by rounding each number to the nearest 10: ______
- Estimate 73 + 28 by rounding each number to the nearest 10: ______
- Estimate 88 + 79 by rounding each number to the nearest 10: ______
- Estimate 21 − 36 by rounding each number to the nearest 10: ______
- Estimate 76 − 82 by rounding each number to the nearest 10: ______
- Estimate 60 − 53 by rounding each number to the nearest 10: ______