Question

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:​

Answer 1

Step-by-step explanation:

answer is group in three

Answer 2

Answer:

1,542

Explanation step by step :

We have to use Associative property

Grouping 1 :

(693 + 437) + 412

693 + 437 = 1,130

1,130 + 412 = 1,542

Grouping 2 :

693 + (437 + 412)

437 + 412 = 849

849 + 693 = 1,542

Grouping 3 :

437 + (693 + 412)

693 + 412 = 1,105

1,105 437 = 1,542

1,542 is the answet

but we have to use Associative property with 3 grouping

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