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Second Grade Challenging Math
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2-21)   Use the digits 1, 3, and 5 to form 3-digit numbers. Do not use the same digit more than once in any 3-digit numbers. (a) How many 3-digit numbers can you make? (b) What is the third largest number?

                   

2-22)   Karen and Deborah had the same number of pens. Karen gave Deborah 6 pens. How many more pens does Deborah have than Karen does?

                         

                             

     

 

2-23)  Find the sequence and fill in the blanks

          a) 0, 4, __, 12, __, 20, __

          b) 64, 55, 46, 37, __, __, 10

          c) 12345, 23451, ______, 45123

 

 

 

2-24)  Inspect the number sequence. Which number does NOT fit the sequence?

          a) 10, 13, 15, 19, 22, 25

          b) 2, 5, 10, 14, 18, 22, 26, 30

 

 

2-25)  Find fast ways to do these additions

          a) 27 + 26 + 23 =

          b) 28 + 63 + 72 + 69 + 37 =

          c) 12 + 34 + 56 + 44 + 88 + 66 =

 

 

More challenging math problems for 2nd grade: 
1-5  6-10  11-15  16-20  21-25  26-30  31-35  36-40  41-45  46-50  51-60  61-70

71-80

 

 
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