Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 69 + 42 by rounding each number to the nearest 10: ______
- Estimate 29 + 63 by rounding each number to the nearest 10: ______
- Estimate 31 − 82 by rounding each number to the nearest 10: ______
- Estimate 32 − 43 by rounding each number to the nearest 10: ______
- Estimate 31 + 39 by rounding each number to the nearest 10: ______
- Estimate 63 + 24 by rounding each number to the nearest 10: ______
- Estimate 56 − 33 by rounding each number to the nearest 10: ______
- Estimate 45 + 61 by rounding each number to the nearest 10: ______
- Estimate 21 − 73 by rounding each number to the nearest 10: ______
- Estimate 73 + 36 by rounding each number to the nearest 10: ______
- Estimate 43 + 72 by rounding each number to the nearest 10: ______
- Estimate 40 + 28 by rounding each number to the nearest 10: ______
- Estimate 40 + 88 by rounding each number to the nearest 10: ______
- Estimate 86 − 48 by rounding each number to the nearest 10: ______
- Estimate 24 − 65 by rounding each number to the nearest 10: ______
- Estimate 82 + 64 by rounding each number to the nearest 10: ______
- Estimate 39 − 64 by rounding each number to the nearest 10: ______
- Estimate 89 + 50 by rounding each number to the nearest 10: ______
- Estimate 33 − 27 by rounding each number to the nearest 10: ______
- Estimate 31 − 72 by rounding each number to the nearest 10: ______