Variations of Comparison Model - "More Than"

Step 1: Draw a box and write the number found after the word "than" (i.e. "?") in this box.

Step 2: Draw a dot at the top-right corner of the first box. This marks the starting point of the arrow we are about to draw next.

Step 3: Draw an arrow from the dot pointing to the right. (The arrow points to the right because it is a "more than" question.

Step 4: Since it is "more than", we are actually making the unknown value "?" (starting number) greater by 4. Hence, draw a second box directly below the arrow to show that the unknown value "?" has been lengthened by 4.

Step 5: Draw a last box to match the length of the first two boxes and write the number 21 in this box.

From the model,

21 - 4 = ?
21 - 4 = 17

Thus, the answer is 17.

Enjoy this page? Please pay it forward. Here's how...

Would you prefer to share this page with others by linking to it?

  1. Click on the HTML link code below.
  2. Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment, your Facebook account, or anywhere that someone would find this page valuable.