Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 46 + 65 by rounding each number to the nearest 10: ______
- Estimate 58 + 33 by rounding each number to the nearest 10: ______
- Estimate 33 + 69 by rounding each number to the nearest 10: ______
- Estimate 21 − 79 by rounding each number to the nearest 10: ______
- Estimate 34 − 49 by rounding each number to the nearest 10: ______
- Estimate 86 − 66 by rounding each number to the nearest 10: ______
- Estimate 26 + 85 by rounding each number to the nearest 10: ______
- Estimate 50 − 25 by rounding each number to the nearest 10: ______
- Estimate 82 − 29 by rounding each number to the nearest 10: ______
- Estimate 42 + 63 by rounding each number to the nearest 10: ______
- Estimate 30 − 22 by rounding each number to the nearest 10: ______
- Estimate 40 + 59 by rounding each number to the nearest 10: ______
- Estimate 73 − 52 by rounding each number to the nearest 10: ______
- Estimate 55 + 22 by rounding each number to the nearest 10: ______
- Estimate 83 + 33 by rounding each number to the nearest 10: ______
- Estimate 88 + 25 by rounding each number to the nearest 10: ______
- Estimate 87 − 44 by rounding each number to the nearest 10: ______
- Estimate 73 − 57 by rounding each number to the nearest 10: ______
- Estimate 64 + 79 by rounding each number to the nearest 10: ______
- Estimate 25 − 33 by rounding each number to the nearest 10: ______