Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 48 − 50 by rounding each number to the nearest 10: ______
- Estimate 61 − 89 by rounding each number to the nearest 10: ______
- Estimate 47 + 57 by rounding each number to the nearest 10: ______
- Estimate 56 − 23 by rounding each number to the nearest 10: ______
- Estimate 73 + 37 by rounding each number to the nearest 10: ______
- Estimate 24 + 39 by rounding each number to the nearest 10: ______
- Estimate 53 + 89 by rounding each number to the nearest 10: ______
- Estimate 59 + 85 by rounding each number to the nearest 10: ______
- Estimate 55 + 23 by rounding each number to the nearest 10: ______
- Estimate 25 + 38 by rounding each number to the nearest 10: ______
- Estimate 82 − 86 by rounding each number to the nearest 10: ______
- Estimate 58 + 31 by rounding each number to the nearest 10: ______
- Estimate 56 + 88 by rounding each number to the nearest 10: ______
- Estimate 45 + 38 by rounding each number to the nearest 10: ______
- Estimate 79 − 30 by rounding each number to the nearest 10: ______
- Estimate 46 − 69 by rounding each number to the nearest 10: ______
- Estimate 83 + 24 by rounding each number to the nearest 10: ______
- Estimate 65 + 40 by rounding each number to the nearest 10: ______
- Estimate 34 − 31 by rounding each number to the nearest 10: ______
- Estimate 34 − 41 by rounding each number to the nearest 10: ______