Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 83 + 36 by rounding each number to the nearest 10: ______
- Estimate 81 − 86 by rounding each number to the nearest 10: ______
- Estimate 65 + 40 by rounding each number to the nearest 10: ______
- Estimate 66 + 57 by rounding each number to the nearest 10: ______
- Estimate 36 + 69 by rounding each number to the nearest 10: ______
- Estimate 60 − 48 by rounding each number to the nearest 10: ______
- Estimate 30 − 47 by rounding each number to the nearest 10: ______
- Estimate 43 − 43 by rounding each number to the nearest 10: ______
- Estimate 70 + 65 by rounding each number to the nearest 10: ______
- Estimate 64 − 60 by rounding each number to the nearest 10: ______
- Estimate 72 − 36 by rounding each number to the nearest 10: ______
- Estimate 88 − 49 by rounding each number to the nearest 10: ______
- Estimate 52 + 27 by rounding each number to the nearest 10: ______
- Estimate 43 − 36 by rounding each number to the nearest 10: ______
- Estimate 47 + 77 by rounding each number to the nearest 10: ______
- Estimate 51 + 75 by rounding each number to the nearest 10: ______
- Estimate 75 + 80 by rounding each number to the nearest 10: ______
- Estimate 70 − 60 by rounding each number to the nearest 10: ______
- Estimate 32 − 56 by rounding each number to the nearest 10: ______
- Estimate 35 − 70 by rounding each number to the nearest 10: ______