Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 69 + 42 by rounding each number to the nearest 10: ______
- Estimate 37 + 26 by rounding each number to the nearest 10: ______
- Estimate 81 + 28 by rounding each number to the nearest 10: ______
- Estimate 26 − 37 by rounding each number to the nearest 10: ______
- Estimate 86 − 32 by rounding each number to the nearest 10: ______
- Estimate 30 − 63 by rounding each number to the nearest 10: ______
- Estimate 24 + 51 by rounding each number to the nearest 10: ______
- Estimate 75 + 35 by rounding each number to the nearest 10: ______
- Estimate 51 + 87 by rounding each number to the nearest 10: ______
- Estimate 43 + 26 by rounding each number to the nearest 10: ______
- Estimate 48 − 62 by rounding each number to the nearest 10: ______
- Estimate 52 + 68 by rounding each number to the nearest 10: ______
- Estimate 52 + 62 by rounding each number to the nearest 10: ______
- Estimate 44 − 30 by rounding each number to the nearest 10: ______
- Estimate 58 − 47 by rounding each number to the nearest 10: ______
- Estimate 50 + 47 by rounding each number to the nearest 10: ______
- Estimate 39 + 50 by rounding each number to the nearest 10: ______
- Estimate 73 − 29 by rounding each number to the nearest 10: ______
- Estimate 29 − 27 by rounding each number to the nearest 10: ______
- Estimate 70 − 29 by rounding each number to the nearest 10: ______