Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 72 + 33 by rounding each number to the nearest 10: ______
- Estimate 39 − 47 by rounding each number to the nearest 10: ______
- Estimate 62 + 61 by rounding each number to the nearest 10: ______
- Estimate 27 + 83 by rounding each number to the nearest 10: ______
- Estimate 69 + 70 by rounding each number to the nearest 10: ______
- Estimate 23 − 79 by rounding each number to the nearest 10: ______
- Estimate 41 − 40 by rounding each number to the nearest 10: ______
- Estimate 62 − 53 by rounding each number to the nearest 10: ______
- Estimate 56 − 27 by rounding each number to the nearest 10: ______
- Estimate 45 + 26 by rounding each number to the nearest 10: ______
- Estimate 49 − 74 by rounding each number to the nearest 10: ______
- Estimate 70 + 50 by rounding each number to the nearest 10: ______
- Estimate 43 − 88 by rounding each number to the nearest 10: ______
- Estimate 73 + 47 by rounding each number to the nearest 10: ______
- Estimate 86 + 22 by rounding each number to the nearest 10: ______
- Estimate 43 + 64 by rounding each number to the nearest 10: ______
- Estimate 48 + 85 by rounding each number to the nearest 10: ______
- Estimate 79 − 52 by rounding each number to the nearest 10: ______
- Estimate 83 + 84 by rounding each number to the nearest 10: ______
- Estimate 34 + 50 by rounding each number to the nearest 10: ______