Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 34 + 54 by rounding each number to the nearest 10: ______
- Estimate 88 − 35 by rounding each number to the nearest 10: ______
- Estimate 45 − 44 by rounding each number to the nearest 10: ______
- Estimate 87 + 39 by rounding each number to the nearest 10: ______
- Estimate 66 − 89 by rounding each number to the nearest 10: ______
- Estimate 89 + 57 by rounding each number to the nearest 10: ______
- Estimate 70 − 36 by rounding each number to the nearest 10: ______
- Estimate 60 − 64 by rounding each number to the nearest 10: ______
- Estimate 70 + 38 by rounding each number to the nearest 10: ______
- Estimate 87 + 84 by rounding each number to the nearest 10: ______
- Estimate 36 + 37 by rounding each number to the nearest 10: ______
- Estimate 47 − 23 by rounding each number to the nearest 10: ______
- Estimate 83 + 33 by rounding each number to the nearest 10: ______
- Estimate 63 + 80 by rounding each number to the nearest 10: ______
- Estimate 88 + 70 by rounding each number to the nearest 10: ______
- Estimate 68 + 26 by rounding each number to the nearest 10: ______
- Estimate 36 + 49 by rounding each number to the nearest 10: ______
- Estimate 59 + 47 by rounding each number to the nearest 10: ______
- Estimate 55 + 72 by rounding each number to the nearest 10: ______
- Estimate 82 + 31 by rounding each number to the nearest 10: ______