Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 83 + 86 by rounding each number to the nearest 10: ______
- Estimate 77 + 61 by rounding each number to the nearest 10: ______
- Estimate 62 − 27 by rounding each number to the nearest 10: ______
- Estimate 57 − 42 by rounding each number to the nearest 10: ______
- Estimate 86 − 77 by rounding each number to the nearest 10: ______
- Estimate 74 − 48 by rounding each number to the nearest 10: ______
- Estimate 63 − 76 by rounding each number to the nearest 10: ______
- Estimate 86 + 66 by rounding each number to the nearest 10: ______
- Estimate 53 + 73 by rounding each number to the nearest 10: ______
- Estimate 75 − 35 by rounding each number to the nearest 10: ______
- Estimate 75 − 55 by rounding each number to the nearest 10: ______
- Estimate 78 + 56 by rounding each number to the nearest 10: ______
- Estimate 41 + 75 by rounding each number to the nearest 10: ______
- Estimate 67 − 43 by rounding each number to the nearest 10: ______
- Estimate 29 − 62 by rounding each number to the nearest 10: ______
- Estimate 39 − 57 by rounding each number to the nearest 10: ______
- Estimate 50 + 36 by rounding each number to the nearest 10: ______
- Estimate 34 − 32 by rounding each number to the nearest 10: ______
- Estimate 21 − 29 by rounding each number to the nearest 10: ______
- Estimate 65 + 52 by rounding each number to the nearest 10: ______