jesterjedi jesterjedi
  • 13-09-2018
  • Mathematics
contestada

rob says he can use 2 x 5 to find 4 x 5. is he correct

Respuesta :

meyyyyy meyyyyy
  • 13-09-2018
Yes 2*5= 10

10 + 10 since its 4 = 20
Answer Link
ChiKesselman ChiKesselman
  • 17-10-2019

Answer:

Yes, Rob can use 2 × 5 for multiplication of 4 × 5.

Step-by-step explanation:

We are given the following information in the question:

Rob can use 2 × 5 for multiplication of 4 × 5.

It can be used in the following manner:

[tex]4\times 5\\= (2\times 2)\times 5\\\text{By associative property of multiplication}\\= 2\times (2\times 5)\\= 2\times 10\\=20\\=4\times 5[/tex]

Hence, Rob can do the multiplication in this way.

Answer Link

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