Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 46 + 43 by rounding each number to the nearest 10: ______
- Estimate 84 − 21 by rounding each number to the nearest 10: ______
- Estimate 88 + 77 by rounding each number to the nearest 10: ______
- Estimate 76 + 66 by rounding each number to the nearest 10: ______
- Estimate 42 + 52 by rounding each number to the nearest 10: ______
- Estimate 64 − 54 by rounding each number to the nearest 10: ______
- Estimate 58 − 57 by rounding each number to the nearest 10: ______
- Estimate 51 + 35 by rounding each number to the nearest 10: ______
- Estimate 38 + 27 by rounding each number to the nearest 10: ______
- Estimate 58 + 29 by rounding each number to the nearest 10: ______
- Estimate 25 + 29 by rounding each number to the nearest 10: ______
- Estimate 31 + 23 by rounding each number to the nearest 10: ______
- Estimate 32 − 58 by rounding each number to the nearest 10: ______
- Estimate 51 − 45 by rounding each number to the nearest 10: ______
- Estimate 81 − 76 by rounding each number to the nearest 10: ______
- Estimate 61 + 76 by rounding each number to the nearest 10: ______
- Estimate 21 + 30 by rounding each number to the nearest 10: ______
- Estimate 59 − 50 by rounding each number to the nearest 10: ______
- Estimate 67 − 43 by rounding each number to the nearest 10: ______
- Estimate 70 − 84 by rounding each number to the nearest 10: ______