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This model represents 157. You want to keep adding ones blocks to the model until it stands for 170. How many ones blocks should you add?

This model represents 157. You want to add keep adding ones blocks to the model until it stands for 170. How many ones blocks should you add?
13
20
10
3




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What is the capital of Egypt? ( Cairo )

1 Answer

  1. To find out how many one blocks you need to add to the model representing 157 to reach 170, you can subtract 157 from 170.

    170 – 157 = 13

    So, you need to add 13 one blocks to reach a total of 170.

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