Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 51 − 77 by rounding each number to the nearest 10: ______
- Estimate 63 + 24 by rounding each number to the nearest 10: ______
- Estimate 37 + 65 by rounding each number to the nearest 10: ______
- Estimate 45 − 80 by rounding each number to the nearest 10: ______
- Estimate 42 − 43 by rounding each number to the nearest 10: ______
- Estimate 50 + 44 by rounding each number to the nearest 10: ______
- Estimate 68 − 67 by rounding each number to the nearest 10: ______
- Estimate 62 + 69 by rounding each number to the nearest 10: ______
- Estimate 43 − 32 by rounding each number to the nearest 10: ______
- Estimate 66 − 44 by rounding each number to the nearest 10: ______
- Estimate 71 + 64 by rounding each number to the nearest 10: ______
- Estimate 83 − 54 by rounding each number to the nearest 10: ______
- Estimate 84 − 87 by rounding each number to the nearest 10: ______
- Estimate 38 − 38 by rounding each number to the nearest 10: ______
- Estimate 82 − 87 by rounding each number to the nearest 10: ______
- Estimate 21 + 86 by rounding each number to the nearest 10: ______
- Estimate 59 − 77 by rounding each number to the nearest 10: ______
- Estimate 69 + 72 by rounding each number to the nearest 10: ______
- Estimate 41 + 66 by rounding each number to the nearest 10: ______
- Estimate 77 + 80 by rounding each number to the nearest 10: ______