Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 79 − 79 by rounding each number to the nearest 10: ______
- Estimate 36 + 63 by rounding each number to the nearest 10: ______
- Estimate 40 − 55 by rounding each number to the nearest 10: ______
- Estimate 83 − 45 by rounding each number to the nearest 10: ______
- Estimate 64 − 75 by rounding each number to the nearest 10: ______
- Estimate 59 + 88 by rounding each number to the nearest 10: ______
- Estimate 30 − 46 by rounding each number to the nearest 10: ______
- Estimate 75 + 73 by rounding each number to the nearest 10: ______
- Estimate 61 + 72 by rounding each number to the nearest 10: ______
- Estimate 58 + 30 by rounding each number to the nearest 10: ______
- Estimate 21 − 52 by rounding each number to the nearest 10: ______
- Estimate 41 + 34 by rounding each number to the nearest 10: ______
- Estimate 70 − 21 by rounding each number to the nearest 10: ______
- Estimate 67 + 37 by rounding each number to the nearest 10: ______
- Estimate 43 + 82 by rounding each number to the nearest 10: ______
- Estimate 35 + 79 by rounding each number to the nearest 10: ______
- Estimate 52 − 45 by rounding each number to the nearest 10: ______
- Estimate 79 + 61 by rounding each number to the nearest 10: ______
- Estimate 38 − 79 by rounding each number to the nearest 10: ______
- Estimate 32 + 37 by rounding each number to the nearest 10: ______