Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 65 − 59 by rounding each number to the nearest 10: ______
- Estimate 83 − 81 by rounding each number to the nearest 10: ______
- Estimate 85 + 87 by rounding each number to the nearest 10: ______
- Estimate 67 − 33 by rounding each number to the nearest 10: ______
- Estimate 26 − 36 by rounding each number to the nearest 10: ______
- Estimate 30 − 37 by rounding each number to the nearest 10: ______
- Estimate 70 − 84 by rounding each number to the nearest 10: ______
- Estimate 68 + 72 by rounding each number to the nearest 10: ______
- Estimate 57 + 59 by rounding each number to the nearest 10: ______
- Estimate 79 + 39 by rounding each number to the nearest 10: ______
- Estimate 68 − 21 by rounding each number to the nearest 10: ______
- Estimate 44 + 51 by rounding each number to the nearest 10: ______
- Estimate 44 − 40 by rounding each number to the nearest 10: ______
- Estimate 38 + 75 by rounding each number to the nearest 10: ______
- Estimate 83 + 40 by rounding each number to the nearest 10: ______
- Estimate 77 − 63 by rounding each number to the nearest 10: ______
- Estimate 56 − 87 by rounding each number to the nearest 10: ______
- Estimate 70 + 49 by rounding each number to the nearest 10: ______
- Estimate 38 + 42 by rounding each number to the nearest 10: ______
- Estimate 23 − 47 by rounding each number to the nearest 10: ______