Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 86 + 54 by rounding each number to the nearest 10: ______
- Estimate 26 + 85 by rounding each number to the nearest 10: ______
- Estimate 69 + 28 by rounding each number to the nearest 10: ______
- Estimate 29 − 75 by rounding each number to the nearest 10: ______
- Estimate 51 + 31 by rounding each number to the nearest 10: ______
- Estimate 79 + 66 by rounding each number to the nearest 10: ______
- Estimate 42 − 26 by rounding each number to the nearest 10: ______
- Estimate 56 + 48 by rounding each number to the nearest 10: ______
- Estimate 73 − 36 by rounding each number to the nearest 10: ______
- Estimate 50 + 82 by rounding each number to the nearest 10: ______
- Estimate 51 + 81 by rounding each number to the nearest 10: ______
- Estimate 52 − 24 by rounding each number to the nearest 10: ______
- Estimate 65 + 77 by rounding each number to the nearest 10: ______
- Estimate 59 − 25 by rounding each number to the nearest 10: ______
- Estimate 75 − 50 by rounding each number to the nearest 10: ______
- Estimate 88 + 65 by rounding each number to the nearest 10: ______
- Estimate 52 − 77 by rounding each number to the nearest 10: ______
- Estimate 82 − 67 by rounding each number to the nearest 10: ______
- Estimate 57 + 58 by rounding each number to the nearest 10: ______
- Estimate 87 − 21 by rounding each number to the nearest 10: ______