Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 72 + 46 by rounding each number to the nearest 10: ______
- Estimate 48 + 79 by rounding each number to the nearest 10: ______
- Estimate 86 − 44 by rounding each number to the nearest 10: ______
- Estimate 84 − 87 by rounding each number to the nearest 10: ______
- Estimate 84 + 75 by rounding each number to the nearest 10: ______
- Estimate 51 + 28 by rounding each number to the nearest 10: ______
- Estimate 40 + 24 by rounding each number to the nearest 10: ______
- Estimate 66 + 44 by rounding each number to the nearest 10: ______
- Estimate 61 + 47 by rounding each number to the nearest 10: ______
- Estimate 64 + 88 by rounding each number to the nearest 10: ______
- Estimate 77 + 35 by rounding each number to the nearest 10: ______
- Estimate 78 − 81 by rounding each number to the nearest 10: ______
- Estimate 75 − 63 by rounding each number to the nearest 10: ______
- Estimate 75 − 49 by rounding each number to the nearest 10: ______
- Estimate 35 + 58 by rounding each number to the nearest 10: ______
- Estimate 86 + 51 by rounding each number to the nearest 10: ______
- Estimate 83 − 36 by rounding each number to the nearest 10: ______
- Estimate 66 + 73 by rounding each number to the nearest 10: ______
- Estimate 65 + 77 by rounding each number to the nearest 10: ______
- Estimate 59 − 86 by rounding each number to the nearest 10: ______