Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 45 + 36 by rounding each number to the nearest 10: ______
- Estimate 80 − 77 by rounding each number to the nearest 10: ______
- Estimate 30 − 72 by rounding each number to the nearest 10: ______
- Estimate 75 + 81 by rounding each number to the nearest 10: ______
- Estimate 62 − 82 by rounding each number to the nearest 10: ______
- Estimate 59 − 89 by rounding each number to the nearest 10: ______
- Estimate 41 + 55 by rounding each number to the nearest 10: ______
- Estimate 83 + 53 by rounding each number to the nearest 10: ______
- Estimate 68 + 84 by rounding each number to the nearest 10: ______
- Estimate 86 − 33 by rounding each number to the nearest 10: ______
- Estimate 69 − 44 by rounding each number to the nearest 10: ______
- Estimate 32 − 82 by rounding each number to the nearest 10: ______
- Estimate 88 + 35 by rounding each number to the nearest 10: ______
- Estimate 58 − 79 by rounding each number to the nearest 10: ______
- Estimate 49 + 34 by rounding each number to the nearest 10: ______
- Estimate 59 + 30 by rounding each number to the nearest 10: ______
- Estimate 29 + 32 by rounding each number to the nearest 10: ______
- Estimate 24 + 40 by rounding each number to the nearest 10: ______
- Estimate 78 − 57 by rounding each number to the nearest 10: ______
- Estimate 72 + 56 by rounding each number to the nearest 10: ______