Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 69 − 59 by rounding each number to the nearest 10: ______
- Estimate 69 − 51 by rounding each number to the nearest 10: ______
- Estimate 78 + 87 by rounding each number to the nearest 10: ______
- Estimate 49 + 86 by rounding each number to the nearest 10: ______
- Estimate 28 − 52 by rounding each number to the nearest 10: ______
- Estimate 73 − 81 by rounding each number to the nearest 10: ______
- Estimate 50 − 60 by rounding each number to the nearest 10: ______
- Estimate 63 + 89 by rounding each number to the nearest 10: ______
- Estimate 79 + 89 by rounding each number to the nearest 10: ______
- Estimate 32 − 32 by rounding each number to the nearest 10: ______
- Estimate 52 − 40 by rounding each number to the nearest 10: ______
- Estimate 63 + 71 by rounding each number to the nearest 10: ______
- Estimate 37 + 70 by rounding each number to the nearest 10: ______
- Estimate 27 − 58 by rounding each number to the nearest 10: ______
- Estimate 52 + 61 by rounding each number to the nearest 10: ______
- Estimate 64 + 63 by rounding each number to the nearest 10: ______
- Estimate 69 − 88 by rounding each number to the nearest 10: ______
- Estimate 23 + 79 by rounding each number to the nearest 10: ______
- Estimate 37 + 33 by rounding each number to the nearest 10: ______
- Estimate 32 + 52 by rounding each number to the nearest 10: ______