Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 67 + 44 by rounding each number to the nearest 10: ______
- Estimate 50 + 47 by rounding each number to the nearest 10: ______
- Estimate 42 − 60 by rounding each number to the nearest 10: ______
- Estimate 75 − 23 by rounding each number to the nearest 10: ______
- Estimate 30 − 44 by rounding each number to the nearest 10: ______
- Estimate 29 + 47 by rounding each number to the nearest 10: ______
- Estimate 21 − 57 by rounding each number to the nearest 10: ______
- Estimate 88 + 31 by rounding each number to the nearest 10: ______
- Estimate 62 − 38 by rounding each number to the nearest 10: ______
- Estimate 38 + 83 by rounding each number to the nearest 10: ______
- Estimate 87 + 42 by rounding each number to the nearest 10: ______
- Estimate 70 − 21 by rounding each number to the nearest 10: ______
- Estimate 44 + 32 by rounding each number to the nearest 10: ______
- Estimate 79 − 27 by rounding each number to the nearest 10: ______
- Estimate 62 + 73 by rounding each number to the nearest 10: ______
- Estimate 21 − 26 by rounding each number to the nearest 10: ______
- Estimate 47 + 82 by rounding each number to the nearest 10: ______
- Estimate 72 + 88 by rounding each number to the nearest 10: ______
- Estimate 54 + 88 by rounding each number to the nearest 10: ______
- Estimate 67 + 79 by rounding each number to the nearest 10: ______