Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 37 − 23 by rounding each number to the nearest 10: ______
- Estimate 68 + 57 by rounding each number to the nearest 10: ______
- Estimate 79 + 55 by rounding each number to the nearest 10: ______
- Estimate 38 − 45 by rounding each number to the nearest 10: ______
- Estimate 44 + 38 by rounding each number to the nearest 10: ______
- Estimate 64 − 67 by rounding each number to the nearest 10: ______
- Estimate 54 − 54 by rounding each number to the nearest 10: ______
- Estimate 37 − 21 by rounding each number to the nearest 10: ______
- Estimate 60 − 79 by rounding each number to the nearest 10: ______
- Estimate 85 + 61 by rounding each number to the nearest 10: ______
- Estimate 89 + 86 by rounding each number to the nearest 10: ______
- Estimate 63 − 42 by rounding each number to the nearest 10: ______
- Estimate 55 + 86 by rounding each number to the nearest 10: ______
- Estimate 33 − 22 by rounding each number to the nearest 10: ______
- Estimate 35 + 65 by rounding each number to the nearest 10: ______
- Estimate 57 + 77 by rounding each number to the nearest 10: ______
- Estimate 47 + 34 by rounding each number to the nearest 10: ______
- Estimate 78 + 42 by rounding each number to the nearest 10: ______
- Estimate 67 − 62 by rounding each number to the nearest 10: ______
- Estimate 28 + 87 by rounding each number to the nearest 10: ______