Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 89 + 48 by rounding each number to the nearest 10: ______
- Estimate 70 + 32 by rounding each number to the nearest 10: ______
- Estimate 80 + 33 by rounding each number to the nearest 10: ______
- Estimate 72 + 56 by rounding each number to the nearest 10: ______
- Estimate 65 + 36 by rounding each number to the nearest 10: ______
- Estimate 63 − 48 by rounding each number to the nearest 10: ______
- Estimate 63 − 46 by rounding each number to the nearest 10: ______
- Estimate 37 + 28 by rounding each number to the nearest 10: ______
- Estimate 80 − 39 by rounding each number to the nearest 10: ______
- Estimate 26 + 34 by rounding each number to the nearest 10: ______
- Estimate 25 + 55 by rounding each number to the nearest 10: ______
- Estimate 79 − 42 by rounding each number to the nearest 10: ______
- Estimate 38 + 64 by rounding each number to the nearest 10: ______
- Estimate 27 − 69 by rounding each number to the nearest 10: ______
- Estimate 23 + 24 by rounding each number to the nearest 10: ______
- Estimate 74 − 69 by rounding each number to the nearest 10: ______
- Estimate 28 − 44 by rounding each number to the nearest 10: ______
- Estimate 41 + 87 by rounding each number to the nearest 10: ______
- Estimate 67 − 46 by rounding each number to the nearest 10: ______
- Estimate 27 − 38 by rounding each number to the nearest 10: ______