Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 79 + 56 by rounding each number to the nearest 10: ______
- Estimate 28 − 79 by rounding each number to the nearest 10: ______
- Estimate 75 + 48 by rounding each number to the nearest 10: ______
- Estimate 57 − 24 by rounding each number to the nearest 10: ______
- Estimate 89 + 50 by rounding each number to the nearest 10: ______
- Estimate 64 − 33 by rounding each number to the nearest 10: ______
- Estimate 86 + 70 by rounding each number to the nearest 10: ______
- Estimate 77 + 53 by rounding each number to the nearest 10: ______
- Estimate 77 − 74 by rounding each number to the nearest 10: ______
- Estimate 67 − 52 by rounding each number to the nearest 10: ______
- Estimate 75 + 83 by rounding each number to the nearest 10: ______
- Estimate 63 + 23 by rounding each number to the nearest 10: ______
- Estimate 73 − 59 by rounding each number to the nearest 10: ______
- Estimate 89 − 50 by rounding each number to the nearest 10: ______
- Estimate 66 − 54 by rounding each number to the nearest 10: ______
- Estimate 80 − 43 by rounding each number to the nearest 10: ______
- Estimate 82 − 64 by rounding each number to the nearest 10: ______
- Estimate 47 − 53 by rounding each number to the nearest 10: ______
- Estimate 32 − 52 by rounding each number to the nearest 10: ______
- Estimate 69 − 39 by rounding each number to the nearest 10: ______