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Do
your best
at answering the following questions.
Check your answer by clicking on the box.

Decide what number goes in the
blank ( __ )
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544
+325
8_9
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324
+ 43 1
75_
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183
+615
7_ _
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527
+162
_ _
_
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178
+121
_ _
_
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515
+121
6_ _
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335
+553
_ _
_
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244
+225
4_ _
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432
+365
_ _
_
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Let's
Review!
click here
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