Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 78 − 44 by rounding each number to the nearest 10: ______
- Estimate 42 − 57 by rounding each number to the nearest 10: ______
- Estimate 38 + 51 by rounding each number to the nearest 10: ______
- Estimate 41 + 80 by rounding each number to the nearest 10: ______
- Estimate 43 − 22 by rounding each number to the nearest 10: ______
- Estimate 54 − 32 by rounding each number to the nearest 10: ______
- Estimate 40 − 52 by rounding each number to the nearest 10: ______
- Estimate 24 − 32 by rounding each number to the nearest 10: ______
- Estimate 42 − 56 by rounding each number to the nearest 10: ______
- Estimate 67 − 75 by rounding each number to the nearest 10: ______
- Estimate 48 − 35 by rounding each number to the nearest 10: ______
- Estimate 23 + 68 by rounding each number to the nearest 10: ______
- Estimate 56 + 76 by rounding each number to the nearest 10: ______
- Estimate 47 − 55 by rounding each number to the nearest 10: ______
- Estimate 71 + 66 by rounding each number to the nearest 10: ______
- Estimate 36 − 27 by rounding each number to the nearest 10: ______
- Estimate 39 − 84 by rounding each number to the nearest 10: ______
- Estimate 27 + 81 by rounding each number to the nearest 10: ______
- Estimate 49 + 80 by rounding each number to the nearest 10: ______
- Estimate 61 + 31 by rounding each number to the nearest 10: ______