Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 84 − 55 by rounding each number to the nearest 10: ______
- Estimate 64 + 87 by rounding each number to the nearest 10: ______
- Estimate 67 + 21 by rounding each number to the nearest 10: ______
- Estimate 43 − 29 by rounding each number to the nearest 10: ______
- Estimate 38 − 65 by rounding each number to the nearest 10: ______
- Estimate 38 − 56 by rounding each number to the nearest 10: ______
- Estimate 36 + 24 by rounding each number to the nearest 10: ______
- Estimate 51 + 85 by rounding each number to the nearest 10: ______
- Estimate 82 − 49 by rounding each number to the nearest 10: ______
- Estimate 72 − 55 by rounding each number to the nearest 10: ______
- Estimate 73 + 40 by rounding each number to the nearest 10: ______
- Estimate 33 − 24 by rounding each number to the nearest 10: ______
- Estimate 34 + 47 by rounding each number to the nearest 10: ______
- Estimate 21 − 46 by rounding each number to the nearest 10: ______
- Estimate 89 + 82 by rounding each number to the nearest 10: ______
- Estimate 25 − 77 by rounding each number to the nearest 10: ______
- Estimate 73 − 54 by rounding each number to the nearest 10: ______
- Estimate 49 + 60 by rounding each number to the nearest 10: ______
- Estimate 86 + 61 by rounding each number to the nearest 10: ______
- Estimate 48 − 44 by rounding each number to the nearest 10: ______