Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 67 − 32 by rounding each number to the nearest 10: ______
- Estimate 79 − 43 by rounding each number to the nearest 10: ______
- Estimate 45 − 64 by rounding each number to the nearest 10: ______
- Estimate 78 + 82 by rounding each number to the nearest 10: ______
- Estimate 63 + 63 by rounding each number to the nearest 10: ______
- Estimate 32 − 64 by rounding each number to the nearest 10: ______
- Estimate 51 − 50 by rounding each number to the nearest 10: ______
- Estimate 83 + 70 by rounding each number to the nearest 10: ______
- Estimate 77 − 27 by rounding each number to the nearest 10: ______
- Estimate 52 − 27 by rounding each number to the nearest 10: ______
- Estimate 34 − 35 by rounding each number to the nearest 10: ______
- Estimate 69 + 60 by rounding each number to the nearest 10: ______
- Estimate 51 + 47 by rounding each number to the nearest 10: ______
- Estimate 25 + 34 by rounding each number to the nearest 10: ______
- Estimate 32 − 82 by rounding each number to the nearest 10: ______
- Estimate 59 + 79 by rounding each number to the nearest 10: ______
- Estimate 89 + 63 by rounding each number to the nearest 10: ______
- Estimate 33 − 58 by rounding each number to the nearest 10: ______
- Estimate 83 − 62 by rounding each number to the nearest 10: ______
- Estimate 29 − 54 by rounding each number to the nearest 10: ______