Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 24 + 24 by rounding each number to the nearest 10: ______
- Estimate 71 − 58 by rounding each number to the nearest 10: ______
- Estimate 39 − 62 by rounding each number to the nearest 10: ______
- Estimate 29 + 78 by rounding each number to the nearest 10: ______
- Estimate 84 − 42 by rounding each number to the nearest 10: ______
- Estimate 87 + 64 by rounding each number to the nearest 10: ______
- Estimate 38 + 23 by rounding each number to the nearest 10: ______
- Estimate 46 + 28 by rounding each number to the nearest 10: ______
- Estimate 46 − 80 by rounding each number to the nearest 10: ______
- Estimate 27 + 21 by rounding each number to the nearest 10: ______
- Estimate 31 + 33 by rounding each number to the nearest 10: ______
- Estimate 86 + 64 by rounding each number to the nearest 10: ______
- Estimate 31 + 83 by rounding each number to the nearest 10: ______
- Estimate 38 − 56 by rounding each number to the nearest 10: ______
- Estimate 44 − 42 by rounding each number to the nearest 10: ______
- Estimate 41 − 70 by rounding each number to the nearest 10: ______
- Estimate 74 + 84 by rounding each number to the nearest 10: ______
- Estimate 62 − 40 by rounding each number to the nearest 10: ______
- Estimate 85 + 27 by rounding each number to the nearest 10: ______
- Estimate 32 + 50 by rounding each number to the nearest 10: ______