Second Grade Challenging Math 
26) The three McMath
sisters Amy, Betty and Cindy wear different color skirts to school. Their skirt colors are red, blue and yellow. Amy's skirt is not red and not blue. Betty's skirt is not blue. What color of skirt does each girl have on?
27) Calculate the following: a) 999 + 99 + 2 = b) 998 + 998 + 4 + 9 + 9 = 28) Subtraction: fill in the blanks
 6  7 

 5  2    ___  ___ 
   ___  ___ 
 4  2 

 2  0 







 9  5 

 9  4    ___  ___ 
   ___  ___ 
 2  4 

 3  2 







29) Three kids eat 1 apple each at the same time. It took them 3 minutes to
eat them. How many minutes does it take for 6 kids to finish eating 6 apples? (Each kid eats 1 apple.)
210) Bob likes to skip stones at the local pond. He collected 15 rocks and separated them into 5 piles. Each pile has a different number of rocks. How many rocks are there in each pile?
More challenging math problems for 2nd grade:
15 610 1115
1620
2125
2630
3135
3640
4145
4650
5160
6170
7180
