Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 89 − 23 by rounding each number to the nearest 10: ______
- Estimate 40 − 88 by rounding each number to the nearest 10: ______
- Estimate 52 + 40 by rounding each number to the nearest 10: ______
- Estimate 68 + 21 by rounding each number to the nearest 10: ______
- Estimate 50 + 46 by rounding each number to the nearest 10: ______
- Estimate 36 − 26 by rounding each number to the nearest 10: ______
- Estimate 72 + 30 by rounding each number to the nearest 10: ______
- Estimate 67 + 35 by rounding each number to the nearest 10: ______
- Estimate 66 − 53 by rounding each number to the nearest 10: ______
- Estimate 80 + 56 by rounding each number to the nearest 10: ______
- Estimate 25 − 28 by rounding each number to the nearest 10: ______
- Estimate 46 − 52 by rounding each number to the nearest 10: ______
- Estimate 65 + 55 by rounding each number to the nearest 10: ______
- Estimate 31 − 55 by rounding each number to the nearest 10: ______
- Estimate 74 − 43 by rounding each number to the nearest 10: ______
- Estimate 44 + 36 by rounding each number to the nearest 10: ______
- Estimate 41 + 23 by rounding each number to the nearest 10: ______
- Estimate 67 + 64 by rounding each number to the nearest 10: ______
- Estimate 56 − 37 by rounding each number to the nearest 10: ______
- Estimate 86 − 74 by rounding each number to the nearest 10: ______