Arithmetic Grade Two

Lesson One hundred forty-nine: Missing Numbers


If you recall the multiplication facts from the last lesson, then you should be able to answer this question.


	2 x __ = 10

To answer this question you need to be able to recall that 2 x 5 = 10. Once you recall this fact, it is easy to realize that the blank in the sample problem must be filled with a 5.

Here's another problem:


	2 x __ = 14

Recall that 2 x 7 = 14. So, the answer to this problem is 7 since 7 fits into the blank to make the statement true.


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