Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 52 + 42 by rounding each number to the nearest 10: ______
- Estimate 48 + 73 by rounding each number to the nearest 10: ______
- Estimate 83 − 79 by rounding each number to the nearest 10: ______
- Estimate 70 − 30 by rounding each number to the nearest 10: ______
- Estimate 44 + 41 by rounding each number to the nearest 10: ______
- Estimate 51 − 31 by rounding each number to the nearest 10: ______
- Estimate 79 + 54 by rounding each number to the nearest 10: ______
- Estimate 64 + 36 by rounding each number to the nearest 10: ______
- Estimate 47 + 82 by rounding each number to the nearest 10: ______
- Estimate 67 + 63 by rounding each number to the nearest 10: ______
- Estimate 56 + 80 by rounding each number to the nearest 10: ______
- Estimate 68 + 32 by rounding each number to the nearest 10: ______
- Estimate 44 − 84 by rounding each number to the nearest 10: ______
- Estimate 58 − 68 by rounding each number to the nearest 10: ______
- Estimate 67 + 64 by rounding each number to the nearest 10: ______
- Estimate 36 − 26 by rounding each number to the nearest 10: ______
- Estimate 54 − 49 by rounding each number to the nearest 10: ______
- Estimate 78 − 69 by rounding each number to the nearest 10: ______
- Estimate 27 + 28 by rounding each number to the nearest 10: ______
- Estimate 75 + 23 by rounding each number to the nearest 10: ______