Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 45 + 46 by rounding each number to the nearest 10: ______
- Estimate 27 + 86 by rounding each number to the nearest 10: ______
- Estimate 28 + 33 by rounding each number to the nearest 10: ______
- Estimate 28 + 33 by rounding each number to the nearest 10: ______
- Estimate 69 − 50 by rounding each number to the nearest 10: ______
- Estimate 31 + 60 by rounding each number to the nearest 10: ______
- Estimate 32 + 42 by rounding each number to the nearest 10: ______
- Estimate 67 + 54 by rounding each number to the nearest 10: ______
- Estimate 66 − 79 by rounding each number to the nearest 10: ______
- Estimate 71 − 70 by rounding each number to the nearest 10: ______
- Estimate 70 + 67 by rounding each number to the nearest 10: ______
- Estimate 68 − 58 by rounding each number to the nearest 10: ______
- Estimate 68 + 83 by rounding each number to the nearest 10: ______
- Estimate 56 + 80 by rounding each number to the nearest 10: ______
- Estimate 30 − 59 by rounding each number to the nearest 10: ______
- Estimate 78 − 70 by rounding each number to the nearest 10: ______
- Estimate 80 + 35 by rounding each number to the nearest 10: ______
- Estimate 83 − 38 by rounding each number to the nearest 10: ______
- Estimate 72 − 88 by rounding each number to the nearest 10: ______
- Estimate 62 − 76 by rounding each number to the nearest 10: ______