- Math
- Estimation
- Age 8-10
-
level: 3
- English
คำแนะนำของผู้เขียน
Estimates the sum of two numbers with three to four
digits with reasonable results.
Estimating Sums and Differences
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คำแนะนำของผู้เขียน
Estimates the sum of two numbers with three to four
digits with reasonable results.