Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 82 + 31 by rounding each number to the nearest 10: ______
- Estimate 54 − 44 by rounding each number to the nearest 10: ______
- Estimate 42 + 57 by rounding each number to the nearest 10: ______
- Estimate 79 − 43 by rounding each number to the nearest 10: ______
- Estimate 78 + 73 by rounding each number to the nearest 10: ______
- Estimate 75 + 49 by rounding each number to the nearest 10: ______
- Estimate 57 − 28 by rounding each number to the nearest 10: ______
- Estimate 86 − 40 by rounding each number to the nearest 10: ______
- Estimate 57 + 60 by rounding each number to the nearest 10: ______
- Estimate 87 + 64 by rounding each number to the nearest 10: ______
- Estimate 56 + 58 by rounding each number to the nearest 10: ______
- Estimate 88 + 23 by rounding each number to the nearest 10: ______
- Estimate 54 − 70 by rounding each number to the nearest 10: ______
- Estimate 52 − 80 by rounding each number to the nearest 10: ______
- Estimate 83 + 21 by rounding each number to the nearest 10: ______
- Estimate 63 − 28 by rounding each number to the nearest 10: ______
- Estimate 55 − 76 by rounding each number to the nearest 10: ______
- Estimate 43 − 44 by rounding each number to the nearest 10: ______
- Estimate 87 + 32 by rounding each number to the nearest 10: ______
- Estimate 62 − 70 by rounding each number to the nearest 10: ______