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Estimating Sums and Differences
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Estimate the sum or difference. Fill in the blank with the correct answer.
1.
45 678 + 21 324 =
2.
876 345 + 423 567 =
3.
65 432 + 43 215 + 56 784 =
4.
78 589 − 46 328 =
5.
385 296 − 98 490 =
6.
853 067 − 619 008 =
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