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Rani's working is shown in the box. Which property did she use in step 1, and what is the final answer?

Class 7Properties of IntegersIntegers
  • ADistributive property; 3700
  • BCommutative property of multiplication; −3700
  • CClosure property; 3700
  • DCommutative property of multiplication; 3700

Step-by-Step Solution

Step 1 swaps the order of 37 and : commutative property of multiplication. Then and .
Answer: D) Commutative property of multiplication; 3700

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