Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 72 − 26 by rounding each number to the nearest 10: ______
- Estimate 52 + 81 by rounding each number to the nearest 10: ______
- Estimate 42 + 88 by rounding each number to the nearest 10: ______
- Estimate 70 − 44 by rounding each number to the nearest 10: ______
- Estimate 40 + 74 by rounding each number to the nearest 10: ______
- Estimate 77 + 89 by rounding each number to the nearest 10: ______
- Estimate 35 + 68 by rounding each number to the nearest 10: ______
- Estimate 25 − 64 by rounding each number to the nearest 10: ______
- Estimate 73 − 23 by rounding each number to the nearest 10: ______
- Estimate 75 − 49 by rounding each number to the nearest 10: ______
- Estimate 49 + 57 by rounding each number to the nearest 10: ______
- Estimate 48 + 37 by rounding each number to the nearest 10: ______
- Estimate 45 − 71 by rounding each number to the nearest 10: ______
- Estimate 86 − 37 by rounding each number to the nearest 10: ______
- Estimate 73 + 53 by rounding each number to the nearest 10: ______
- Estimate 22 + 32 by rounding each number to the nearest 10: ______
- Estimate 83 − 61 by rounding each number to the nearest 10: ______
- Estimate 82 + 39 by rounding each number to the nearest 10: ______
- Estimate 66 + 50 by rounding each number to the nearest 10: ______
- Estimate 50 − 33 by rounding each number to the nearest 10: ______