Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 79 − 65 by rounding each number to the nearest 10: ______
- Estimate 21 − 36 by rounding each number to the nearest 10: ______
- Estimate 65 − 46 by rounding each number to the nearest 10: ______
- Estimate 71 − 24 by rounding each number to the nearest 10: ______
- Estimate 40 + 42 by rounding each number to the nearest 10: ______
- Estimate 29 + 65 by rounding each number to the nearest 10: ______
- Estimate 48 − 43 by rounding each number to the nearest 10: ______
- Estimate 65 + 39 by rounding each number to the nearest 10: ______
- Estimate 88 + 69 by rounding each number to the nearest 10: ______
- Estimate 53 + 66 by rounding each number to the nearest 10: ______
- Estimate 34 − 36 by rounding each number to the nearest 10: ______
- Estimate 50 + 75 by rounding each number to the nearest 10: ______
- Estimate 43 − 88 by rounding each number to the nearest 10: ______
- Estimate 61 + 32 by rounding each number to the nearest 10: ______
- Estimate 32 − 74 by rounding each number to the nearest 10: ______
- Estimate 73 − 27 by rounding each number to the nearest 10: ______
- Estimate 48 + 25 by rounding each number to the nearest 10: ______
- Estimate 71 + 86 by rounding each number to the nearest 10: ______
- Estimate 58 − 88 by rounding each number to the nearest 10: ______
- Estimate 57 − 24 by rounding each number to the nearest 10: ______