Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 86 + 26 by rounding each number to the nearest 10: ______
- Estimate 80 + 52 by rounding each number to the nearest 10: ______
- Estimate 70 − 53 by rounding each number to the nearest 10: ______
- Estimate 76 + 35 by rounding each number to the nearest 10: ______
- Estimate 87 + 45 by rounding each number to the nearest 10: ______
- Estimate 25 + 59 by rounding each number to the nearest 10: ______
- Estimate 63 + 51 by rounding each number to the nearest 10: ______
- Estimate 78 − 61 by rounding each number to the nearest 10: ______
- Estimate 24 − 88 by rounding each number to the nearest 10: ______
- Estimate 68 − 44 by rounding each number to the nearest 10: ______
- Estimate 89 + 55 by rounding each number to the nearest 10: ______
- Estimate 34 + 63 by rounding each number to the nearest 10: ______
- Estimate 46 + 55 by rounding each number to the nearest 10: ______
- Estimate 36 + 45 by rounding each number to the nearest 10: ______
- Estimate 58 − 27 by rounding each number to the nearest 10: ______
- Estimate 32 − 41 by rounding each number to the nearest 10: ______
- Estimate 27 + 63 by rounding each number to the nearest 10: ______
- Estimate 45 − 39 by rounding each number to the nearest 10: ______
- Estimate 81 + 42 by rounding each number to the nearest 10: ______
- Estimate 74 + 46 by rounding each number to the nearest 10: ______