Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 42 − 71 by rounding each number to the nearest 10: ______
- Estimate 77 − 28 by rounding each number to the nearest 10: ______
- Estimate 63 + 68 by rounding each number to the nearest 10: ______
- Estimate 87 − 56 by rounding each number to the nearest 10: ______
- Estimate 45 − 51 by rounding each number to the nearest 10: ______
- Estimate 48 − 23 by rounding each number to the nearest 10: ______
- Estimate 70 − 84 by rounding each number to the nearest 10: ______
- Estimate 60 + 43 by rounding each number to the nearest 10: ______
- Estimate 51 − 58 by rounding each number to the nearest 10: ______
- Estimate 88 − 51 by rounding each number to the nearest 10: ______
- Estimate 74 + 24 by rounding each number to the nearest 10: ______
- Estimate 47 − 68 by rounding each number to the nearest 10: ______
- Estimate 84 + 88 by rounding each number to the nearest 10: ______
- Estimate 36 + 80 by rounding each number to the nearest 10: ______
- Estimate 79 + 44 by rounding each number to the nearest 10: ______
- Estimate 71 − 39 by rounding each number to the nearest 10: ______
- Estimate 45 − 38 by rounding each number to the nearest 10: ______
- Estimate 57 + 47 by rounding each number to the nearest 10: ______
- Estimate 33 + 48 by rounding each number to the nearest 10: ______
- Estimate 52 + 39 by rounding each number to the nearest 10: ______