Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 33 − 80 by rounding each number to the nearest 10: ______
- Estimate 56 + 89 by rounding each number to the nearest 10: ______
- Estimate 55 − 69 by rounding each number to the nearest 10: ______
- Estimate 74 + 37 by rounding each number to the nearest 10: ______
- Estimate 47 − 72 by rounding each number to the nearest 10: ______
- Estimate 54 + 69 by rounding each number to the nearest 10: ______
- Estimate 22 + 55 by rounding each number to the nearest 10: ______
- Estimate 38 − 61 by rounding each number to the nearest 10: ______
- Estimate 78 − 58 by rounding each number to the nearest 10: ______
- Estimate 84 − 73 by rounding each number to the nearest 10: ______
- Estimate 88 − 83 by rounding each number to the nearest 10: ______
- Estimate 70 − 23 by rounding each number to the nearest 10: ______
- Estimate 30 + 21 by rounding each number to the nearest 10: ______
- Estimate 48 + 41 by rounding each number to the nearest 10: ______
- Estimate 56 + 28 by rounding each number to the nearest 10: ______
- Estimate 24 − 37 by rounding each number to the nearest 10: ______
- Estimate 72 + 53 by rounding each number to the nearest 10: ______
- Estimate 61 − 61 by rounding each number to the nearest 10: ______
- Estimate 30 − 52 by rounding each number to the nearest 10: ______
- Estimate 89 − 42 by rounding each number to the nearest 10: ______