Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 70 + 39 by rounding each number to the nearest 10: ______
- Estimate 88 − 27 by rounding each number to the nearest 10: ______
- Estimate 72 − 59 by rounding each number to the nearest 10: ______
- Estimate 62 + 55 by rounding each number to the nearest 10: ______
- Estimate 45 − 83 by rounding each number to the nearest 10: ______
- Estimate 47 − 23 by rounding each number to the nearest 10: ______
- Estimate 78 + 74 by rounding each number to the nearest 10: ______
- Estimate 24 + 73 by rounding each number to the nearest 10: ______
- Estimate 58 − 86 by rounding each number to the nearest 10: ______
- Estimate 84 − 41 by rounding each number to the nearest 10: ______
- Estimate 38 + 53 by rounding each number to the nearest 10: ______
- Estimate 40 − 49 by rounding each number to the nearest 10: ______
- Estimate 38 + 48 by rounding each number to the nearest 10: ______
- Estimate 88 + 82 by rounding each number to the nearest 10: ______
- Estimate 41 − 84 by rounding each number to the nearest 10: ______
- Estimate 64 + 81 by rounding each number to the nearest 10: ______
- Estimate 69 + 55 by rounding each number to the nearest 10: ______
- Estimate 40 − 40 by rounding each number to the nearest 10: ______
- Estimate 51 + 88 by rounding each number to the nearest 10: ______
- Estimate 21 − 62 by rounding each number to the nearest 10: ______