Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 35 − 43 by rounding each number to the nearest 10: ______
- Estimate 36 + 33 by rounding each number to the nearest 10: ______
- Estimate 89 − 24 by rounding each number to the nearest 10: ______
- Estimate 36 + 58 by rounding each number to the nearest 10: ______
- Estimate 44 − 82 by rounding each number to the nearest 10: ______
- Estimate 60 + 23 by rounding each number to the nearest 10: ______
- Estimate 61 + 38 by rounding each number to the nearest 10: ______
- Estimate 51 + 78 by rounding each number to the nearest 10: ______
- Estimate 36 + 61 by rounding each number to the nearest 10: ______
- Estimate 23 − 54 by rounding each number to the nearest 10: ______
- Estimate 86 − 37 by rounding each number to the nearest 10: ______
- Estimate 51 − 57 by rounding each number to the nearest 10: ______
- Estimate 25 − 39 by rounding each number to the nearest 10: ______
- Estimate 86 + 74 by rounding each number to the nearest 10: ______
- Estimate 41 − 23 by rounding each number to the nearest 10: ______
- Estimate 73 − 37 by rounding each number to the nearest 10: ______
- Estimate 28 − 29 by rounding each number to the nearest 10: ______
- Estimate 81 − 21 by rounding each number to the nearest 10: ______
- Estimate 70 − 25 by rounding each number to the nearest 10: ______
- Estimate 72 + 32 by rounding each number to the nearest 10: ______