This model represents 128.
You want to keep adding ones blocks to the model until it stands for 140.
How many ones blocks should you add?

2
12
10
20

Question

This model represents 128. You want to keep adding ones blocks to the model until it stands for 140. How many ones blocks should you add? 2 12 10 20

Quizzma Team · Answer

To determine how many ones blocks you need to add to get from 128 to 140, you can subtract 128 from 140:

140 – 128 = 12

So, you need to add 12 ones blocks to the model to reach 140.

The correct answer is 12.

This model represents 128. You want to keep adding ones blocks to the model until it stands for 140. How many ones blocks should you add?