Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 78 + 86 by rounding each number to the nearest 10: ______
- Estimate 84 − 75 by rounding each number to the nearest 10: ______
- Estimate 69 − 72 by rounding each number to the nearest 10: ______
- Estimate 86 + 58 by rounding each number to the nearest 10: ______
- Estimate 35 + 56 by rounding each number to the nearest 10: ______
- Estimate 24 + 79 by rounding each number to the nearest 10: ______
- Estimate 42 + 49 by rounding each number to the nearest 10: ______
- Estimate 37 − 74 by rounding each number to the nearest 10: ______
- Estimate 31 − 24 by rounding each number to the nearest 10: ______
- Estimate 63 + 63 by rounding each number to the nearest 10: ______
- Estimate 70 − 53 by rounding each number to the nearest 10: ______
- Estimate 44 − 21 by rounding each number to the nearest 10: ______
- Estimate 68 − 76 by rounding each number to the nearest 10: ______
- Estimate 46 − 83 by rounding each number to the nearest 10: ______
- Estimate 58 − 51 by rounding each number to the nearest 10: ______
- Estimate 77 − 47 by rounding each number to the nearest 10: ______
- Estimate 36 − 24 by rounding each number to the nearest 10: ______
- Estimate 39 − 45 by rounding each number to the nearest 10: ______
- Estimate 72 + 84 by rounding each number to the nearest 10: ______
- Estimate 44 + 49 by rounding each number to the nearest 10: ______