Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 67 + 72 by rounding each number to the nearest 10: ______
- Estimate 25 + 55 by rounding each number to the nearest 10: ______
- Estimate 33 + 47 by rounding each number to the nearest 10: ______
- Estimate 21 − 40 by rounding each number to the nearest 10: ______
- Estimate 37 − 60 by rounding each number to the nearest 10: ______
- Estimate 29 + 58 by rounding each number to the nearest 10: ______
- Estimate 27 − 74 by rounding each number to the nearest 10: ______
- Estimate 68 + 69 by rounding each number to the nearest 10: ______
- Estimate 50 − 69 by rounding each number to the nearest 10: ______
- Estimate 46 − 45 by rounding each number to the nearest 10: ______
- Estimate 39 + 81 by rounding each number to the nearest 10: ______
- Estimate 49 + 39 by rounding each number to the nearest 10: ______
- Estimate 38 − 43 by rounding each number to the nearest 10: ______
- Estimate 88 − 79 by rounding each number to the nearest 10: ______
- Estimate 77 − 57 by rounding each number to the nearest 10: ______
- Estimate 77 − 53 by rounding each number to the nearest 10: ______
- Estimate 62 + 63 by rounding each number to the nearest 10: ______
- Estimate 48 − 80 by rounding each number to the nearest 10: ______
- Estimate 83 − 28 by rounding each number to the nearest 10: ______
- Estimate 77 + 74 by rounding each number to the nearest 10: ______