Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 39 − 37 by rounding each number to the nearest 10: ______
- Estimate 75 − 61 by rounding each number to the nearest 10: ______
- Estimate 28 − 24 by rounding each number to the nearest 10: ______
- Estimate 63 + 73 by rounding each number to the nearest 10: ______
- Estimate 57 − 37 by rounding each number to the nearest 10: ______
- Estimate 39 − 62 by rounding each number to the nearest 10: ______
- Estimate 68 + 26 by rounding each number to the nearest 10: ______
- Estimate 35 + 21 by rounding each number to the nearest 10: ______
- Estimate 71 + 75 by rounding each number to the nearest 10: ______
- Estimate 43 + 71 by rounding each number to the nearest 10: ______
- Estimate 71 − 87 by rounding each number to the nearest 10: ______
- Estimate 23 + 40 by rounding each number to the nearest 10: ______
- Estimate 83 + 49 by rounding each number to the nearest 10: ______
- Estimate 72 + 59 by rounding each number to the nearest 10: ______
- Estimate 89 − 53 by rounding each number to the nearest 10: ______
- Estimate 36 + 45 by rounding each number to the nearest 10: ______
- Estimate 64 − 66 by rounding each number to the nearest 10: ______
- Estimate 70 + 57 by rounding each number to the nearest 10: ______
- Estimate 29 − 32 by rounding each number to the nearest 10: ______
- Estimate 87 + 38 by rounding each number to the nearest 10: ______