Answer :

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The result of the product of 157 and 3 calculated using the model is 471

To obtain the product of 3 × 157 using the model ;

STEP 1 :

  • Taking the product of 3 and 100 first

  • It is much easier to solve for 100×3 than 157 × 3

  • Hence, 3 × 100 = 300

STEP 2 :

  • 157 - 100 - 7 = 50

  • 3 × 50 = 150

STEP 3 :

  • 7 × 3 = 21

STEP 3 :

  • The Sum of the result of the products obtained in steps 1, 2 and 3

  • Sum = (300 + 150 + 21) = 471

Therefore, the result of the product of 157 and 3 using the model is 471.

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