Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 35 − 51 by rounding each number to the nearest 10: ______
- Estimate 23 − 58 by rounding each number to the nearest 10: ______
- Estimate 79 + 55 by rounding each number to the nearest 10: ______
- Estimate 61 − 70 by rounding each number to the nearest 10: ______
- Estimate 25 − 64 by rounding each number to the nearest 10: ______
- Estimate 52 + 44 by rounding each number to the nearest 10: ______
- Estimate 87 + 46 by rounding each number to the nearest 10: ______
- Estimate 88 − 54 by rounding each number to the nearest 10: ______
- Estimate 56 − 45 by rounding each number to the nearest 10: ______
- Estimate 64 + 74 by rounding each number to the nearest 10: ______
- Estimate 74 + 24 by rounding each number to the nearest 10: ______
- Estimate 40 + 21 by rounding each number to the nearest 10: ______
- Estimate 56 + 23 by rounding each number to the nearest 10: ______
- Estimate 47 + 70 by rounding each number to the nearest 10: ______
- Estimate 74 + 65 by rounding each number to the nearest 10: ______
- Estimate 25 + 69 by rounding each number to the nearest 10: ______
- Estimate 28 − 87 by rounding each number to the nearest 10: ______
- Estimate 81 + 52 by rounding each number to the nearest 10: ______
- Estimate 63 − 87 by rounding each number to the nearest 10: ______
- Estimate 22 + 72 by rounding each number to the nearest 10: ______