Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 84 − 23 by rounding each number to the nearest 10: ______
- Estimate 27 − 23 by rounding each number to the nearest 10: ______
- Estimate 41 − 38 by rounding each number to the nearest 10: ______
- Estimate 63 + 69 by rounding each number to the nearest 10: ______
- Estimate 65 − 67 by rounding each number to the nearest 10: ______
- Estimate 79 − 63 by rounding each number to the nearest 10: ______
- Estimate 27 + 89 by rounding each number to the nearest 10: ______
- Estimate 84 + 24 by rounding each number to the nearest 10: ______
- Estimate 47 + 71 by rounding each number to the nearest 10: ______
- Estimate 47 + 57 by rounding each number to the nearest 10: ______
- Estimate 24 + 89 by rounding each number to the nearest 10: ______
- Estimate 33 − 53 by rounding each number to the nearest 10: ______
- Estimate 44 + 70 by rounding each number to the nearest 10: ______
- Estimate 48 + 83 by rounding each number to the nearest 10: ______
- Estimate 44 − 74 by rounding each number to the nearest 10: ______
- Estimate 62 + 59 by rounding each number to the nearest 10: ______
- Estimate 73 − 43 by rounding each number to the nearest 10: ______
- Estimate 21 − 65 by rounding each number to the nearest 10: ______
- Estimate 27 + 37 by rounding each number to the nearest 10: ______
- Estimate 77 − 50 by rounding each number to the nearest 10: ______