Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 23 − 85 by rounding each number to the nearest 10: ______
- Estimate 30 − 70 by rounding each number to the nearest 10: ______
- Estimate 41 − 47 by rounding each number to the nearest 10: ______
- Estimate 59 − 57 by rounding each number to the nearest 10: ______
- Estimate 56 − 42 by rounding each number to the nearest 10: ______
- Estimate 33 + 71 by rounding each number to the nearest 10: ______
- Estimate 42 + 60 by rounding each number to the nearest 10: ______
- Estimate 23 − 88 by rounding each number to the nearest 10: ______
- Estimate 89 − 72 by rounding each number to the nearest 10: ______
- Estimate 88 + 40 by rounding each number to the nearest 10: ______
- Estimate 86 + 79 by rounding each number to the nearest 10: ______
- Estimate 22 − 33 by rounding each number to the nearest 10: ______
- Estimate 22 + 36 by rounding each number to the nearest 10: ______
- Estimate 26 − 22 by rounding each number to the nearest 10: ______
- Estimate 56 + 72 by rounding each number to the nearest 10: ______
- Estimate 74 + 83 by rounding each number to the nearest 10: ______
- Estimate 38 − 61 by rounding each number to the nearest 10: ______
- Estimate 54 − 38 by rounding each number to the nearest 10: ______
- Estimate 33 + 27 by rounding each number to the nearest 10: ______
- Estimate 44 + 73 by rounding each number to the nearest 10: ______