Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 63 − 62 by rounding each number to the nearest 10: ______
- Estimate 25 − 27 by rounding each number to the nearest 10: ______
- Estimate 51 − 70 by rounding each number to the nearest 10: ______
- Estimate 61 + 73 by rounding each number to the nearest 10: ______
- Estimate 72 + 58 by rounding each number to the nearest 10: ______
- Estimate 48 + 65 by rounding each number to the nearest 10: ______
- Estimate 56 − 79 by rounding each number to the nearest 10: ______
- Estimate 66 + 46 by rounding each number to the nearest 10: ______
- Estimate 73 − 77 by rounding each number to the nearest 10: ______
- Estimate 57 − 55 by rounding each number to the nearest 10: ______
- Estimate 60 − 53 by rounding each number to the nearest 10: ______
- Estimate 69 − 40 by rounding each number to the nearest 10: ______
- Estimate 34 − 68 by rounding each number to the nearest 10: ______
- Estimate 21 + 25 by rounding each number to the nearest 10: ______
- Estimate 50 − 84 by rounding each number to the nearest 10: ______
- Estimate 69 + 67 by rounding each number to the nearest 10: ______
- Estimate 26 − 87 by rounding each number to the nearest 10: ______
- Estimate 75 − 34 by rounding each number to the nearest 10: ______
- Estimate 67 − 27 by rounding each number to the nearest 10: ______
- Estimate 51 + 43 by rounding each number to the nearest 10: ______