Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 82 − 77 by rounding each number to the nearest 10: ______
- Estimate 83 − 35 by rounding each number to the nearest 10: ______
- Estimate 34 + 45 by rounding each number to the nearest 10: ______
- Estimate 34 − 45 by rounding each number to the nearest 10: ______
- Estimate 31 + 71 by rounding each number to the nearest 10: ______
- Estimate 67 − 34 by rounding each number to the nearest 10: ______
- Estimate 53 + 46 by rounding each number to the nearest 10: ______
- Estimate 51 − 56 by rounding each number to the nearest 10: ______
- Estimate 88 − 53 by rounding each number to the nearest 10: ______
- Estimate 54 + 86 by rounding each number to the nearest 10: ______
- Estimate 32 + 21 by rounding each number to the nearest 10: ______
- Estimate 74 − 36 by rounding each number to the nearest 10: ______
- Estimate 79 − 45 by rounding each number to the nearest 10: ______
- Estimate 25 + 73 by rounding each number to the nearest 10: ______
- Estimate 41 + 87 by rounding each number to the nearest 10: ______
- Estimate 75 − 67 by rounding each number to the nearest 10: ______
- Estimate 82 + 54 by rounding each number to the nearest 10: ______
- Estimate 56 − 51 by rounding each number to the nearest 10: ______
- Estimate 72 − 53 by rounding each number to the nearest 10: ______
- Estimate 44 − 36 by rounding each number to the nearest 10: ______