Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 51 + 46 by rounding each number to the nearest 10: ______
- Estimate 72 + 44 by rounding each number to the nearest 10: ______
- Estimate 24 + 33 by rounding each number to the nearest 10: ______
- Estimate 80 + 45 by rounding each number to the nearest 10: ______
- Estimate 84 + 62 by rounding each number to the nearest 10: ______
- Estimate 55 − 45 by rounding each number to the nearest 10: ______
- Estimate 83 − 60 by rounding each number to the nearest 10: ______
- Estimate 73 + 58 by rounding each number to the nearest 10: ______
- Estimate 25 + 31 by rounding each number to the nearest 10: ______
- Estimate 52 − 26 by rounding each number to the nearest 10: ______
- Estimate 47 − 28 by rounding each number to the nearest 10: ______
- Estimate 81 + 80 by rounding each number to the nearest 10: ______
- Estimate 58 + 33 by rounding each number to the nearest 10: ______
- Estimate 61 − 23 by rounding each number to the nearest 10: ______
- Estimate 71 − 74 by rounding each number to the nearest 10: ______
- Estimate 86 + 42 by rounding each number to the nearest 10: ______
- Estimate 23 − 69 by rounding each number to the nearest 10: ______
- Estimate 51 + 71 by rounding each number to the nearest 10: ______
- Estimate 88 + 78 by rounding each number to the nearest 10: ______
- Estimate 28 − 25 by rounding each number to the nearest 10: ______