Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 83 − 52 by rounding each number to the nearest 10: ______
- Estimate 79 + 71 by rounding each number to the nearest 10: ______
- Estimate 86 + 73 by rounding each number to the nearest 10: ______
- Estimate 25 − 74 by rounding each number to the nearest 10: ______
- Estimate 80 − 44 by rounding each number to the nearest 10: ______
- Estimate 62 + 76 by rounding each number to the nearest 10: ______
- Estimate 38 + 74 by rounding each number to the nearest 10: ______
- Estimate 84 + 43 by rounding each number to the nearest 10: ______
- Estimate 22 + 64 by rounding each number to the nearest 10: ______
- Estimate 42 + 57 by rounding each number to the nearest 10: ______
- Estimate 51 + 38 by rounding each number to the nearest 10: ______
- Estimate 62 − 88 by rounding each number to the nearest 10: ______
- Estimate 23 − 88 by rounding each number to the nearest 10: ______
- Estimate 48 − 47 by rounding each number to the nearest 10: ______
- Estimate 24 + 24 by rounding each number to the nearest 10: ______
- Estimate 46 + 36 by rounding each number to the nearest 10: ______
- Estimate 86 − 84 by rounding each number to the nearest 10: ______
- Estimate 85 + 87 by rounding each number to the nearest 10: ______
- Estimate 47 − 45 by rounding each number to the nearest 10: ______
- Estimate 69 − 25 by rounding each number to the nearest 10: ______