Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 77 + 49 by rounding each number to the nearest 10: ______
- Estimate 30 + 66 by rounding each number to the nearest 10: ______
- Estimate 46 − 73 by rounding each number to the nearest 10: ______
- Estimate 79 − 77 by rounding each number to the nearest 10: ______
- Estimate 81 + 42 by rounding each number to the nearest 10: ______
- Estimate 44 − 78 by rounding each number to the nearest 10: ______
- Estimate 59 − 71 by rounding each number to the nearest 10: ______
- Estimate 36 − 39 by rounding each number to the nearest 10: ______
- Estimate 53 − 58 by rounding each number to the nearest 10: ______
- Estimate 38 − 47 by rounding each number to the nearest 10: ______
- Estimate 32 + 44 by rounding each number to the nearest 10: ______
- Estimate 52 − 57 by rounding each number to the nearest 10: ______
- Estimate 34 − 81 by rounding each number to the nearest 10: ______
- Estimate 68 + 50 by rounding each number to the nearest 10: ______
- Estimate 63 − 24 by rounding each number to the nearest 10: ______
- Estimate 27 − 83 by rounding each number to the nearest 10: ______
- Estimate 69 − 83 by rounding each number to the nearest 10: ______
- Estimate 36 + 87 by rounding each number to the nearest 10: ______
- Estimate 65 + 89 by rounding each number to the nearest 10: ______
- Estimate 51 + 60 by rounding each number to the nearest 10: ______