Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 86 + 58 by rounding each number to the nearest 10: ______
- Estimate 72 + 50 by rounding each number to the nearest 10: ______
- Estimate 36 + 46 by rounding each number to the nearest 10: ______
- Estimate 89 − 56 by rounding each number to the nearest 10: ______
- Estimate 44 + 26 by rounding each number to the nearest 10: ______
- Estimate 23 − 55 by rounding each number to the nearest 10: ______
- Estimate 76 + 82 by rounding each number to the nearest 10: ______
- Estimate 45 + 88 by rounding each number to the nearest 10: ______
- Estimate 42 + 85 by rounding each number to the nearest 10: ______
- Estimate 71 + 36 by rounding each number to the nearest 10: ______
- Estimate 72 − 85 by rounding each number to the nearest 10: ______
- Estimate 64 − 77 by rounding each number to the nearest 10: ______
- Estimate 38 + 40 by rounding each number to the nearest 10: ______
- Estimate 40 − 38 by rounding each number to the nearest 10: ______
- Estimate 80 + 49 by rounding each number to the nearest 10: ______
- Estimate 36 + 83 by rounding each number to the nearest 10: ______
- Estimate 78 + 40 by rounding each number to the nearest 10: ______
- Estimate 84 − 67 by rounding each number to the nearest 10: ______
- Estimate 37 − 86 by rounding each number to the nearest 10: ______
- Estimate 59 + 48 by rounding each number to the nearest 10: ______