Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 50 − 39 by rounding each number to the nearest 10: ______
- Estimate 24 + 42 by rounding each number to the nearest 10: ______
- Estimate 70 − 32 by rounding each number to the nearest 10: ______
- Estimate 29 + 40 by rounding each number to the nearest 10: ______
- Estimate 43 − 76 by rounding each number to the nearest 10: ______
- Estimate 26 + 64 by rounding each number to the nearest 10: ______
- Estimate 69 − 63 by rounding each number to the nearest 10: ______
- Estimate 32 + 27 by rounding each number to the nearest 10: ______
- Estimate 41 − 23 by rounding each number to the nearest 10: ______
- Estimate 31 + 89 by rounding each number to the nearest 10: ______
- Estimate 76 − 73 by rounding each number to the nearest 10: ______
- Estimate 66 + 83 by rounding each number to the nearest 10: ______
- Estimate 48 + 29 by rounding each number to the nearest 10: ______
- Estimate 76 + 24 by rounding each number to the nearest 10: ______
- Estimate 70 − 71 by rounding each number to the nearest 10: ______
- Estimate 37 + 79 by rounding each number to the nearest 10: ______
- Estimate 46 + 28 by rounding each number to the nearest 10: ______
- Estimate 34 + 32 by rounding each number to the nearest 10: ______
- Estimate 70 + 79 by rounding each number to the nearest 10: ______
- Estimate 69 + 30 by rounding each number to the nearest 10: ______