Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 41 + 84 by rounding each number to the nearest 10: ______
- Estimate 42 − 71 by rounding each number to the nearest 10: ______
- Estimate 79 + 34 by rounding each number to the nearest 10: ______
- Estimate 72 + 61 by rounding each number to the nearest 10: ______
- Estimate 30 − 78 by rounding each number to the nearest 10: ______
- Estimate 23 + 60 by rounding each number to the nearest 10: ______
- Estimate 87 − 38 by rounding each number to the nearest 10: ______
- Estimate 83 + 72 by rounding each number to the nearest 10: ______
- Estimate 58 − 73 by rounding each number to the nearest 10: ______
- Estimate 37 + 77 by rounding each number to the nearest 10: ______
- Estimate 79 − 27 by rounding each number to the nearest 10: ______
- Estimate 39 + 28 by rounding each number to the nearest 10: ______
- Estimate 68 + 31 by rounding each number to the nearest 10: ______
- Estimate 69 + 41 by rounding each number to the nearest 10: ______
- Estimate 57 − 38 by rounding each number to the nearest 10: ______
- Estimate 79 − 69 by rounding each number to the nearest 10: ______
- Estimate 77 − 76 by rounding each number to the nearest 10: ______
- Estimate 44 − 77 by rounding each number to the nearest 10: ______
- Estimate 46 − 51 by rounding each number to the nearest 10: ______
- Estimate 54 − 67 by rounding each number to the nearest 10: ______