Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 62 − 43 by rounding each number to the nearest 10: ______
- Estimate 48 + 28 by rounding each number to the nearest 10: ______
- Estimate 43 + 67 by rounding each number to the nearest 10: ______
- Estimate 51 + 34 by rounding each number to the nearest 10: ______
- Estimate 70 + 28 by rounding each number to the nearest 10: ______
- Estimate 38 + 48 by rounding each number to the nearest 10: ______
- Estimate 77 − 24 by rounding each number to the nearest 10: ______
- Estimate 79 − 35 by rounding each number to the nearest 10: ______
- Estimate 42 − 68 by rounding each number to the nearest 10: ______
- Estimate 82 + 51 by rounding each number to the nearest 10: ______
- Estimate 21 + 60 by rounding each number to the nearest 10: ______
- Estimate 31 + 32 by rounding each number to the nearest 10: ______
- Estimate 72 − 52 by rounding each number to the nearest 10: ______
- Estimate 42 + 74 by rounding each number to the nearest 10: ______
- Estimate 36 + 31 by rounding each number to the nearest 10: ______
- Estimate 45 + 39 by rounding each number to the nearest 10: ______
- Estimate 61 + 62 by rounding each number to the nearest 10: ______
- Estimate 41 − 78 by rounding each number to the nearest 10: ______
- Estimate 53 − 52 by rounding each number to the nearest 10: ______
- Estimate 86 − 52 by rounding each number to the nearest 10: ______