7
Solve 693 + 437 +412 by grouping in 3 ways and state which way is the fastest to solve.
Grouping 3
Grouping 1

7
Solve 693 + 437 +412 by grouping in 3 ways and state which way is the fastest to solve.
Grouping 3
Grouping 1
Grouping 2
Fastest Solution:​

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