Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 38 − 74 by rounding each number to the nearest 10: ______
- Estimate 63 − 67 by rounding each number to the nearest 10: ______
- Estimate 61 + 62 by rounding each number to the nearest 10: ______
- Estimate 47 + 73 by rounding each number to the nearest 10: ______
- Estimate 32 + 37 by rounding each number to the nearest 10: ______
- Estimate 85 + 79 by rounding each number to the nearest 10: ______
- Estimate 50 − 40 by rounding each number to the nearest 10: ______
- Estimate 34 + 86 by rounding each number to the nearest 10: ______
- Estimate 43 + 67 by rounding each number to the nearest 10: ______
- Estimate 45 − 36 by rounding each number to the nearest 10: ______
- Estimate 40 + 29 by rounding each number to the nearest 10: ______
- Estimate 83 − 71 by rounding each number to the nearest 10: ______
- Estimate 66 − 83 by rounding each number to the nearest 10: ______
- Estimate 69 + 73 by rounding each number to the nearest 10: ______
- Estimate 52 + 25 by rounding each number to the nearest 10: ______
- Estimate 87 + 33 by rounding each number to the nearest 10: ______
- Estimate 67 + 56 by rounding each number to the nearest 10: ______
- Estimate 31 − 27 by rounding each number to the nearest 10: ______
- Estimate 81 + 42 by rounding each number to the nearest 10: ______
- Estimate 71 + 64 by rounding each number to the nearest 10: ______