Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 25 + 32 by rounding each number to the nearest 10: ______
- Estimate 31 − 30 by rounding each number to the nearest 10: ______
- Estimate 63 − 25 by rounding each number to the nearest 10: ______
- Estimate 56 + 34 by rounding each number to the nearest 10: ______
- Estimate 21 − 73 by rounding each number to the nearest 10: ______
- Estimate 70 + 80 by rounding each number to the nearest 10: ______
- Estimate 66 + 32 by rounding each number to the nearest 10: ______
- Estimate 51 − 21 by rounding each number to the nearest 10: ______
- Estimate 33 + 72 by rounding each number to the nearest 10: ______
- Estimate 27 − 25 by rounding each number to the nearest 10: ______
- Estimate 38 + 48 by rounding each number to the nearest 10: ______
- Estimate 27 − 41 by rounding each number to the nearest 10: ______
- Estimate 27 + 42 by rounding each number to the nearest 10: ______
- Estimate 43 + 88 by rounding each number to the nearest 10: ______
- Estimate 57 − 72 by rounding each number to the nearest 10: ______
- Estimate 32 − 21 by rounding each number to the nearest 10: ______
- Estimate 50 − 31 by rounding each number to the nearest 10: ______
- Estimate 56 + 60 by rounding each number to the nearest 10: ______
- Estimate 83 + 25 by rounding each number to the nearest 10: ______
- Estimate 86 − 23 by rounding each number to the nearest 10: ______