Second Grade Arithmetic

Lesson One hundred seventy-nine: Picking Problems

Picking Problems

Here are some more problems for you to study:

.
. 

  TARGET: 19

  PROBLEM:
   A. 20 - 1 =
   B. 3 + 15 =
   C. 12 ÷ 2 =
   D. 19 - 5 =

  ANSWER: The only problem which
   has an answer of 19 is A.
. 

  TARGET: 12

  PROBLEM:
   A. 3 + 16 =
   B. 3 x 5 =
   C. 2 + 10 =
   D. 19 - 5 =

  ANSWER: The only problem which
   has an answer of 12 is C.
.
.

Take a look at these problem and decide why some are true and some are false: 


    5 + 14 = 19   ---> TRUE

    20 ÷ 10 = 21   ---> FALSE

    13 + 14 = 21 ---> FALSE

    3 x 4 = 11  ---> FALSE

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