Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 66 + 65 by rounding each number to the nearest 10: ______
- Estimate 23 + 50 by rounding each number to the nearest 10: ______
- Estimate 32 + 24 by rounding each number to the nearest 10: ______
- Estimate 23 + 39 by rounding each number to the nearest 10: ______
- Estimate 85 + 37 by rounding each number to the nearest 10: ______
- Estimate 85 − 64 by rounding each number to the nearest 10: ______
- Estimate 88 + 36 by rounding each number to the nearest 10: ______
- Estimate 64 + 57 by rounding each number to the nearest 10: ______
- Estimate 65 − 64 by rounding each number to the nearest 10: ______
- Estimate 73 − 76 by rounding each number to the nearest 10: ______
- Estimate 58 + 40 by rounding each number to the nearest 10: ______
- Estimate 73 − 55 by rounding each number to the nearest 10: ______
- Estimate 25 + 61 by rounding each number to the nearest 10: ______
- Estimate 86 + 25 by rounding each number to the nearest 10: ______
- Estimate 48 − 83 by rounding each number to the nearest 10: ______
- Estimate 35 − 73 by rounding each number to the nearest 10: ______
- Estimate 83 + 38 by rounding each number to the nearest 10: ______
- Estimate 36 − 24 by rounding each number to the nearest 10: ______
- Estimate 48 − 48 by rounding each number to the nearest 10: ______
- Estimate 64 − 29 by rounding each number to the nearest 10: ______