Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 63 + 32 by rounding each number to the nearest 10: ______
- Estimate 79 − 67 by rounding each number to the nearest 10: ______
- Estimate 52 − 62 by rounding each number to the nearest 10: ______
- Estimate 52 − 72 by rounding each number to the nearest 10: ______
- Estimate 74 − 54 by rounding each number to the nearest 10: ______
- Estimate 67 + 72 by rounding each number to the nearest 10: ______
- Estimate 59 − 40 by rounding each number to the nearest 10: ______
- Estimate 24 + 85 by rounding each number to the nearest 10: ______
- Estimate 72 − 42 by rounding each number to the nearest 10: ______
- Estimate 27 − 85 by rounding each number to the nearest 10: ______
- Estimate 27 − 73 by rounding each number to the nearest 10: ______
- Estimate 30 − 44 by rounding each number to the nearest 10: ______
- Estimate 48 − 44 by rounding each number to the nearest 10: ______
- Estimate 66 + 85 by rounding each number to the nearest 10: ______
- Estimate 73 + 27 by rounding each number to the nearest 10: ______
- Estimate 21 − 47 by rounding each number to the nearest 10: ______
- Estimate 35 + 75 by rounding each number to the nearest 10: ______
- Estimate 74 + 22 by rounding each number to the nearest 10: ______
- Estimate 84 + 21 by rounding each number to the nearest 10: ______
- Estimate 52 + 33 by rounding each number to the nearest 10: ______