1. Order the numbers from the greatest to the least.

   
   3,098; 3,908; 3,980; 3,809; 3,890

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2. Tony has collected green leaves. Alan has collected red leaves.
   
   
   
   
   

   Write a number sentence to show how many more leaves Tony has than Alan.

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3. Which of the following does NOT require regrouping to subtract?

     1,200 - 890   893 - 823   803 - 398   803 - 338

   
   

4. Writing to explain how to find the number that goes in the box.
   
   12 + = 35

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5. Draw place-value blocks to subtract.

   338 - 259 =

   
   
   

Answer key

1. 3,980; 3,908; 3,890; 3,809; 3,098;
2. 12 - 7 = 5
3. 893 - 823
4. 35 - 12 = 23