Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 40 − 60 by rounding each number to the nearest 10: ______
- Estimate 64 − 35 by rounding each number to the nearest 10: ______
- Estimate 24 − 37 by rounding each number to the nearest 10: ______
- Estimate 46 − 82 by rounding each number to the nearest 10: ______
- Estimate 77 + 51 by rounding each number to the nearest 10: ______
- Estimate 63 + 43 by rounding each number to the nearest 10: ______
- Estimate 28 − 88 by rounding each number to the nearest 10: ______
- Estimate 58 − 59 by rounding each number to the nearest 10: ______
- Estimate 38 − 41 by rounding each number to the nearest 10: ______
- Estimate 47 + 26 by rounding each number to the nearest 10: ______
- Estimate 83 + 83 by rounding each number to the nearest 10: ______
- Estimate 44 + 61 by rounding each number to the nearest 10: ______
- Estimate 48 + 59 by rounding each number to the nearest 10: ______
- Estimate 47 + 80 by rounding each number to the nearest 10: ______
- Estimate 83 − 32 by rounding each number to the nearest 10: ______
- Estimate 70 + 23 by rounding each number to the nearest 10: ______
- Estimate 40 − 27 by rounding each number to the nearest 10: ______
- Estimate 58 − 64 by rounding each number to the nearest 10: ______
- Estimate 71 − 76 by rounding each number to the nearest 10: ______
- Estimate 26 + 33 by rounding each number to the nearest 10: ______