Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 58 − 48 by rounding each number to the nearest 10: ______
- Estimate 30 + 81 by rounding each number to the nearest 10: ______
- Estimate 74 + 60 by rounding each number to the nearest 10: ______
- Estimate 44 + 67 by rounding each number to the nearest 10: ______
- Estimate 62 − 41 by rounding each number to the nearest 10: ______
- Estimate 38 − 35 by rounding each number to the nearest 10: ______
- Estimate 64 + 42 by rounding each number to the nearest 10: ______
- Estimate 78 + 41 by rounding each number to the nearest 10: ______
- Estimate 27 − 26 by rounding each number to the nearest 10: ______
- Estimate 73 − 84 by rounding each number to the nearest 10: ______
- Estimate 78 − 87 by rounding each number to the nearest 10: ______
- Estimate 70 − 71 by rounding each number to the nearest 10: ______
- Estimate 59 + 83 by rounding each number to the nearest 10: ______
- Estimate 83 − 26 by rounding each number to the nearest 10: ______
- Estimate 79 − 44 by rounding each number to the nearest 10: ______
- Estimate 58 − 50 by rounding each number to the nearest 10: ______
- Estimate 81 − 24 by rounding each number to the nearest 10: ______
- Estimate 38 + 89 by rounding each number to the nearest 10: ______
- Estimate 68 + 43 by rounding each number to the nearest 10: ______
- Estimate 57 − 24 by rounding each number to the nearest 10: ______