Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 67 − 43 by rounding each number to the nearest 10: ______
- Estimate 24 − 78 by rounding each number to the nearest 10: ______
- Estimate 23 − 80 by rounding each number to the nearest 10: ______
- Estimate 88 + 74 by rounding each number to the nearest 10: ______
- Estimate 88 + 87 by rounding each number to the nearest 10: ______
- Estimate 56 + 45 by rounding each number to the nearest 10: ______
- Estimate 54 − 49 by rounding each number to the nearest 10: ______
- Estimate 75 + 86 by rounding each number to the nearest 10: ______
- Estimate 32 − 55 by rounding each number to the nearest 10: ______
- Estimate 50 − 62 by rounding each number to the nearest 10: ______
- Estimate 88 + 50 by rounding each number to the nearest 10: ______
- Estimate 30 + 64 by rounding each number to the nearest 10: ______
- Estimate 49 + 22 by rounding each number to the nearest 10: ______
- Estimate 41 + 60 by rounding each number to the nearest 10: ______
- Estimate 38 + 71 by rounding each number to the nearest 10: ______
- Estimate 40 + 73 by rounding each number to the nearest 10: ______
- Estimate 76 − 31 by rounding each number to the nearest 10: ______
- Estimate 84 + 83 by rounding each number to the nearest 10: ______
- Estimate 79 − 52 by rounding each number to the nearest 10: ______
- Estimate 83 − 23 by rounding each number to the nearest 10: ______