Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 48 − 45 by rounding each number to the nearest 10: ______
- Estimate 51 + 53 by rounding each number to the nearest 10: ______
- Estimate 42 − 85 by rounding each number to the nearest 10: ______
- Estimate 32 − 28 by rounding each number to the nearest 10: ______
- Estimate 39 − 51 by rounding each number to the nearest 10: ______
- Estimate 53 + 88 by rounding each number to the nearest 10: ______
- Estimate 47 − 44 by rounding each number to the nearest 10: ______
- Estimate 30 − 26 by rounding each number to the nearest 10: ______
- Estimate 35 + 57 by rounding each number to the nearest 10: ______
- Estimate 69 − 70 by rounding each number to the nearest 10: ______
- Estimate 68 − 36 by rounding each number to the nearest 10: ______
- Estimate 50 − 70 by rounding each number to the nearest 10: ______
- Estimate 86 − 64 by rounding each number to the nearest 10: ______
- Estimate 72 − 59 by rounding each number to the nearest 10: ______
- Estimate 50 + 62 by rounding each number to the nearest 10: ______
- Estimate 77 − 32 by rounding each number to the nearest 10: ______
- Estimate 27 + 31 by rounding each number to the nearest 10: ______
- Estimate 23 − 41 by rounding each number to the nearest 10: ______
- Estimate 69 + 32 by rounding each number to the nearest 10: ______
- Estimate 69 − 25 by rounding each number to the nearest 10: ______