Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 43 + 42 by rounding each number to the nearest 10: ______
- Estimate 70 − 70 by rounding each number to the nearest 10: ______
- Estimate 88 + 35 by rounding each number to the nearest 10: ______
- Estimate 57 + 74 by rounding each number to the nearest 10: ______
- Estimate 81 + 35 by rounding each number to the nearest 10: ______
- Estimate 31 + 50 by rounding each number to the nearest 10: ______
- Estimate 79 − 65 by rounding each number to the nearest 10: ______
- Estimate 44 + 49 by rounding each number to the nearest 10: ______
- Estimate 84 − 39 by rounding each number to the nearest 10: ______
- Estimate 85 + 81 by rounding each number to the nearest 10: ______
- Estimate 52 + 68 by rounding each number to the nearest 10: ______
- Estimate 81 + 79 by rounding each number to the nearest 10: ______
- Estimate 28 + 48 by rounding each number to the nearest 10: ______
- Estimate 55 + 36 by rounding each number to the nearest 10: ______
- Estimate 45 + 77 by rounding each number to the nearest 10: ______
- Estimate 47 − 52 by rounding each number to the nearest 10: ______
- Estimate 22 − 73 by rounding each number to the nearest 10: ______
- Estimate 46 + 56 by rounding each number to the nearest 10: ______
- Estimate 63 − 47 by rounding each number to the nearest 10: ______
- Estimate 34 − 32 by rounding each number to the nearest 10: ______