Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 51 + 60 by rounding each number to the nearest 10: ______
- Estimate 50 − 24 by rounding each number to the nearest 10: ______
- Estimate 75 − 21 by rounding each number to the nearest 10: ______
- Estimate 30 − 72 by rounding each number to the nearest 10: ______
- Estimate 77 − 33 by rounding each number to the nearest 10: ______
- Estimate 52 + 50 by rounding each number to the nearest 10: ______
- Estimate 30 + 59 by rounding each number to the nearest 10: ______
- Estimate 27 − 52 by rounding each number to the nearest 10: ______
- Estimate 59 + 33 by rounding each number to the nearest 10: ______
- Estimate 75 − 84 by rounding each number to the nearest 10: ______
- Estimate 84 + 79 by rounding each number to the nearest 10: ______
- Estimate 35 − 88 by rounding each number to the nearest 10: ______
- Estimate 38 + 57 by rounding each number to the nearest 10: ______
- Estimate 47 + 39 by rounding each number to the nearest 10: ______
- Estimate 55 + 41 by rounding each number to the nearest 10: ______
- Estimate 35 − 50 by rounding each number to the nearest 10: ______
- Estimate 83 − 60 by rounding each number to the nearest 10: ______
- Estimate 69 − 73 by rounding each number to the nearest 10: ______
- Estimate 61 − 83 by rounding each number to the nearest 10: ______
- Estimate 87 − 85 by rounding each number to the nearest 10: ______