Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 34 − 26 by rounding each number to the nearest 10: ______
- Estimate 22 − 23 by rounding each number to the nearest 10: ______
- Estimate 35 − 47 by rounding each number to the nearest 10: ______
- Estimate 86 − 25 by rounding each number to the nearest 10: ______
- Estimate 59 − 43 by rounding each number to the nearest 10: ______
- Estimate 64 + 21 by rounding each number to the nearest 10: ______
- Estimate 82 + 83 by rounding each number to the nearest 10: ______
- Estimate 32 − 62 by rounding each number to the nearest 10: ______
- Estimate 40 + 81 by rounding each number to the nearest 10: ______
- Estimate 66 + 42 by rounding each number to the nearest 10: ______
- Estimate 75 − 36 by rounding each number to the nearest 10: ______
- Estimate 87 − 84 by rounding each number to the nearest 10: ______
- Estimate 52 − 79 by rounding each number to the nearest 10: ______
- Estimate 75 + 89 by rounding each number to the nearest 10: ______
- Estimate 49 − 46 by rounding each number to the nearest 10: ______
- Estimate 52 + 58 by rounding each number to the nearest 10: ______
- Estimate 33 − 70 by rounding each number to the nearest 10: ______
- Estimate 25 + 80 by rounding each number to the nearest 10: ______
- Estimate 23 − 47 by rounding each number to the nearest 10: ______
- Estimate 79 + 62 by rounding each number to the nearest 10: ______