Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 70 + 64 by rounding each number to the nearest 10: ______
- Estimate 79 + 60 by rounding each number to the nearest 10: ______
- Estimate 83 + 44 by rounding each number to the nearest 10: ______
- Estimate 49 + 22 by rounding each number to the nearest 10: ______
- Estimate 42 − 65 by rounding each number to the nearest 10: ______
- Estimate 53 + 33 by rounding each number to the nearest 10: ______
- Estimate 26 + 28 by rounding each number to the nearest 10: ______
- Estimate 38 − 71 by rounding each number to the nearest 10: ______
- Estimate 82 + 60 by rounding each number to the nearest 10: ______
- Estimate 35 + 42 by rounding each number to the nearest 10: ______
- Estimate 31 + 50 by rounding each number to the nearest 10: ______
- Estimate 28 + 48 by rounding each number to the nearest 10: ______
- Estimate 67 − 88 by rounding each number to the nearest 10: ______
- Estimate 29 + 42 by rounding each number to the nearest 10: ______
- Estimate 85 + 63 by rounding each number to the nearest 10: ______
- Estimate 87 + 71 by rounding each number to the nearest 10: ______
- Estimate 45 − 83 by rounding each number to the nearest 10: ______
- Estimate 29 + 32 by rounding each number to the nearest 10: ______
- Estimate 28 − 74 by rounding each number to the nearest 10: ______
- Estimate 59 − 61 by rounding each number to the nearest 10: ______